CN108837650A - A kind of automatic desulfurating dust-removing equipment - Google Patents
A kind of automatic desulfurating dust-removing equipment Download PDFInfo
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- CN108837650A CN108837650A CN201810656092.7A CN201810656092A CN108837650A CN 108837650 A CN108837650 A CN 108837650A CN 201810656092 A CN201810656092 A CN 201810656092A CN 108837650 A CN108837650 A CN 108837650A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D50/00—Combinations of methods or devices for separating particles from gases or vapours
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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
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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
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- Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
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Abstract
The present invention provides a kind of automatic desulfurating dust-removing equipment, and the equipment includes：Air distribution outlet, combustion furnace, ceramic filter, bubbling bed pneumatic filter and the absorber being sequentially communicated；The gas vent of the combustion furnace is connected to the gas access of the ceramic filter by first pipe, and the gas vent of the ceramic filter is connected to the gas access of the bubbling bed pneumatic filter by second pipe；The first diameter of the cross section of the junction of the gas access of the first pipe and the ceramic filter be it is variable, the second diameter of the cross section of the junction of the gas access of the second pipe and the bubbling bed pneumatic filter is also variable.The present invention can be realized two kinds of purposes of desulfurization and dedusting.
Description
Technical field
The present invention relates to environmental protection machinery more particularly to a kind of automatic desulfurating dust-removing equipments.
Background technique
Exhaust gas refers to the poisonous and hazardous gas that the mankind are discharged in production and life process.Especially chemical plant, steel
The exhaust gas smell of factory, pharmaceutical factory and coking plant and oil plant etc., discharge is big, serious to pollute environment and influence human health.
Many containing pollutant kind in exhaust gas, physics and chemical property are extremely complex, and toxicity is also not quite similar.Fuel
Contain sulfur dioxide, nitrogen oxides in the exhaust gas of burning discharge（NOx）, hydrocarbon, flue dust etc..Exhaust emission atmospheric environment is the world
One of the environmental problem of most universal most serious.
In common process, desulfurization and dedusting are completed in respective device respectively as the operation of independent unit, this
Independent waste gas treatment process higher cost, and wasting space, complex process, therefore, it is necessary to research and develop a kind of automatic desulfurization
Cleaner, to reach two kinds of purposes of desulfurization and dedusting together.
Summary of the invention
In order to solve the above technical problem, the present invention provides a kind of automatic desulfurating dust-removing equipments.
The present invention is realized with following technical solution：
A kind of automatic desulfurating dust-removing equipment, the equipment include：Air distribution outlet, combustion furnace, ceramic filter, the bubbling being sequentially communicated
Bed gas filter and absorber；
The gas vent of the combustion furnace is connected to the gas access of the ceramic filter by first pipe, the ceramics mistake
The gas vent of filter is connected to the gas access of the bubbling bed pneumatic filter by second pipe；
The first diameter of the cross section of the junction of the gas access of the first pipe and the ceramic filter be it is variable,
The second diameter of the cross section of the junction of the gas access of the second pipe and the bubbling bed pneumatic filter is also can
Become.
Further, the junction of the first pipe and combustion furnace gas vent is the first end of the first pipe
The junction of the gas access of portion, the first pipe and the ceramic filter is the second end of the first pipe；Institute
It states and is connected between first end and the second end by pipeline body.
Further, the pipeline body is made of the flexible part of multiple fan brackets and the two neighboring fan bracket of connection；
The degree of fan bracket stretching, extension is different, then the diameter of the second end cross section is different.
Further, fan bracket and first end are rotatablely connected, and the interconnecting piece by rotating itself and first end changes
The extension degree of the fan bracket is provided with arc interconnecting piece, the arc interconnecting piece and the sector at the second end
The stretching, extension track of bracket matches, so that it is guaranteed that fan bracket is contacted with the second end always in stretching process.
Further, the ceramic filter is the bilayer being made of first filter interconnected and the second filter
The preparation method of filter, the first filter filtration fraction includes：
By the first dedusting regenerant, the second dedusting regenerant and calcium hydroxide according to 1:1:5 proportion mixing；
Said mixture plus water are mixed, and roasted 2 hours；
Mixture after roasting is put into row grinding；
Obtained mixed powder is poured into hemispherical Si3N4 porous ceramics, by constantly rotating and gently shaking described half
The Si3N4 porous ceramics of spherical surface makes in Si3N4 porous ceramics hole full of matrix powder；
Si3N4 porous ceramics is put into sintering furnace, under nitrogen protection, 2h is kept the temperature at 800 DEG C, then naturally cools to room
Temperature.
The present invention has following beneficial effects：
（1）It can be realized two kinds of purposes of desulfurization and dedusting；
（2）It can be realized the desulfurization of whole-course automation and the accurate control of dust collecting process process, high degree of automation, desulfuration efficiency
Height, good dedusting effect.
Detailed description of the invention
Fig. 1 is a kind of automatic desulfurating dust-removing equipment schematic diagram provided in this embodiment；
Fig. 2 is first pipe schematic front view provided in this embodiment；
Fig. 3 is that pipeline body provided in this embodiment is fully deployed schematic top plan view；
Fig. 4 is the preparation method flow chart of first filter filtration fraction provided in this embodiment；
Fig. 5 is the preparation method flow chart of the second filter filtration fraction provided in this embodiment；
Fig. 6 is bubbling bed pneumatic filter schematic diagram provided in this embodiment；
Fig. 7 is the acquisition methods flow chart of porous ceramic plate provided in this embodiment.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, the present invention is made into one below in conjunction with attached drawing
Step ground detailed description.
The embodiment of the present invention provides a kind of automatic desulfurating dust-removing equipment, as shown in Figure 1, the equipment includes：Air distribution outlet 1,
Combustion furnace 2, ceramic filter 3, bubbling bed pneumatic filter 4, absorber 5 and gas circulation line 6, the air distribution outlet 1 and institute
The first gas inlet 01 for stating combustion furnace 2 is connected to, and the gas vent of the combustion furnace 2 and the gas of the ceramic filter 3 enter
Mouth is connected to by first pipe 10, and the gas vent of the ceramic filter 3 and the gas of the bubbling bed pneumatic filter 4 enter
Mouth is connected to by second pipe 20, and the gas vent of the bubbling bed pneumatic filter 4 is connected to the gas access of absorber 5,
The gas vent of the absorber 5 is connected to the first circulation mouth of the gas circulation line 6, the gas circulation line 6
Second circulation mouth is connected to the second gas inlet 02 of the combustion furnace 2.It is provided with sub-control valve in the gas circulation line 6,
When the content of sulfide in gas and itrated compound in the gas circulation line is below preset value, the gas circulating tube
Road sub-control valve is opened, and gas is discharged into atmosphere, and otherwise, sub-control valve is closed, and gas reenters combustion furnace 2.
The first pipe 10 and the first diameter of the cross section of the junction of the gas access of the ceramic filter 3 are
Variable, the second pipe 20 and the second of the cross section of the junction of the gas access of the bubbling bed pneumatic filter 5
Diameter is also variable.Specifically, the first pipe 10 is internally provided with the first air velocity detector, the second pipe
20 are internally provided with the second air velocity detector, the first air velocity detector and the second air velocity detection zone
It is connected to controller, in order to which the controller is according to the air velocity of the first air velocity detector acquisition control first
The size of diameter, and the size according to the air velocity of the second air velocity detector acquisition control second diameter.
The diameter of the cross section of the junction of the gas vent of first pipe 10 and combustion furnace 2 is constant, first pipe
10 with the first diameter of the cross section of the junction of the gas access of the ceramic filter 3 be it is variable, so as to pass through
Change the gas flow rate in the volume adjustment first pipe of first pipe 10, similarly, the gas flow rate of second pipe 20 is also can
It adjusts.It is emphasized that the embodiment of the present invention is not intended to limit the first pipe 10 that can be realized above-mentioned technical effect and the second pipe
The specific structure in road 20.
The specific technical solution of the application for ease of description, the embodiment of the present invention provide a kind of feasible first pipe and
The structure of the structure of second pipe, first pipe and second pipe can be identical, and certainly, this structure is not intended to limit this Shen
Protection scope please.
By taking first pipe as an example, as shown in Fig. 2, the junction of the first pipe 10 and 2 gas vent of combustion furnace is institute
The first end 100 of first pipe 10 is stated, the first pipe 10 and the junction of the gas access of the ceramic filter 3 are
The second end 200 of the first pipe 10.Connected between the first end 100 and the second end 200 by pipeline body 300
It connects.As shown in figure 3, flexible part 302 of the pipeline body 300 by multiple fan brackets 301 and the two neighboring fan bracket of connection
It constitutes.The degree that fan bracket 301 stretches is different, then the diameter of 200 cross section of the second end is different, between two fan brackets
The setting of flexible part 302 ensure that the second end cross-sectional diameter difference does not influence the leakproofness of first pipe.
Specifically, it by taking a fan bracket as an example, is rotatablely connected with first end 100, by rotating itself and first end
The interconnecting piece in portion 100 changes the extension degree of the fan bracket, and arc interconnecting piece 201 is provided at the second end, described
Arc interconnecting piece 201 matches with the stretching, extension track of the fan bracket, so that it is guaranteed that fan bracket in stretching process always
It is contacted with the second end 200, so that it is guaranteed that the leakproofness of first pipe 10.
In actual waste gas treatment process, ceramic filter 3 carries out gas preliminary dust-removal and desulfurizing filter operation, drum
It steeps bed gas filter 4 and carries out further dust-removal and desulfurizing filter operation.Air velocity at first pipe 10 should be greater than the
The air velocity of two pipelines 20.Reason is：Increase the speed that gas in ceramic filter passes through ceramic filter, strengthens inertia
Collision effect improves efficiency of dust collection.And for bubbling bed pneumatic filter 4, the air velocity of second pipe is reduced, thus
Increase the time that gas rests on dense bubbling bed area, promotes efficiency of dust collection.
Specifically, the embodiment of the present invention further provides the specific structure of ceramic filter 3, the ceramic filter 3
For carrying out desulfurization and dedusting operation to gas.
The ceramic filter 3 is the double medium filtration being made of first filter 31 interconnected and the second filter 32
Device.The first filter 31 and second filter 32 are hemisphere face filter, to be conducive to gas on curved surface
The different pressure differences generated for flowing through situation, achieve the purpose that filter internal and external exchange.The diameter of the first filter 31 is less than
The diameter 32 of second filter, the purpose designed in this way are the second filter 32 closer to bubbling bed pneumatic filter 4, gas
Body can be further decreased by speed after the second bigger filter 32 of diameter.
Specifically, as shown in figure 4, the embodiment of the present invention provides the preparation method of the first filter filtration fraction：
S101. by the first dedusting regenerant, the second dedusting regenerant and calcium hydroxide according to 1:1:5 proportion mixing.
Specifically, the first dedusting regenerant and the second dedusting regenerant are all that dedusting is carried out after coal burning
The product recycled in the process can be obtained easily in common industrial flow.The requirement of first dedusting regenerant is
The content of effective alkali metal such as sweetening component calcium oxide and magnesia reaches 50% of gross mass or more.Second dedusting regenerant
It is required that being that the content of iron oxide and ferrous oxide reaches 40% or more.
S102. add water to mix said mixture, and roast 2 hours.
First dedusting regenerant and the second dedusting regenerant are able to ascend the utilization of desulfurization as the additive of calcium hydroxide
Rate, and promote the duration of desulfurization, pass through the mixing with calcium hydroxide and use the technique of the embodiment of the present invention can
Metal composite oxide is obtained, the hole of desulfurizing agent is optimized, to improve reaction speed and calcium utilization.
S103. the mixture after roasting is put into row grinding.
S104. obtained mixed powder is poured into hemispherical Si3N4In porous ceramics, by constantly rotating and gently shaking
Move the hemispherical Si3N4Porous ceramics makes Si3N4Matrix powder is full of in porous ceramics hole.
Specifically, the Si3N4The gap partial size of porous ceramics is within 0.4mm.
S105. by Si3N4Porous ceramics is put into sintering furnace, under nitrogen protection, 2h is kept the temperature at 800 DEG C, then natural
It is cooled to room temperature, the hemispherical Si that can will be obtained3N4Filtration fraction as first filter.
It is confirmed through overtesting, hemispherical Si obtained in the embodiment of the present invention3N4Desulfidation can be played, and is worked as
After exhaust gas passes through first filter, hemispherical Si3N4The particle diameter of desulfurizing agent matched with the speed of exhaust gas at that time, have
It is formed conducive to filter cake, promotes efficiency of dust collection.
Specifically, as shown in figure 5, the embodiment of the present invention provides the preparation method of the second filter filtration fraction：
S201. vermiculite, diatomite, Desulphurization, sea cowry mud, diammonium hydrogen phosphate and magnesium complexing 8-hydroxyquinoline are uniformly mixed.
Specifically, the quality proportioning of above-mentioned material can be set according to actual needs, and the embodiment of the present invention, which is not done, to be had
Body limits.
S202. add water to be beaten manufactured slurries said mixture, and roast 2 hours, be put into pulverizer crushing.
S203. smashed mixture is roughly ground and is refined.
S204. the mixture after fine grinding is mounted in be passed through in the ball grinder of helium and is mixed, mixing time 12h is mixed
After material, abrading-ball is taken out.
S205. obtained mixed powder is poured into hemispherical SiC porous ceramics, by constantly rotating and gently shaking
The hemispherical SiC porous ceramics is moved, is made in SiC porous ceramics hole full of matrix powder.
Specifically, the gap partial size of the SiC porous ceramics is within 0.4mm.
S206. SiC porous ceramics is put into sintering furnace, under nitrogen protection, 2h is kept the temperature at 1000 DEG C, it is then natural
It is cooled to room temperature, the second filter filtration fraction can be obtained.
It is confirmed through overtesting, the second filter filtration fraction obtained in the embodiment of the present invention can play preferable dedusting
Dust suction effect.
Specifically, the embodiment of the present invention provides a kind of bubbling bed pneumatic filter.
As shown in fig. 6, being provided with closing inner chamber 40 in the bubbling bed pneumatic filter 4, set in the closing inner chamber 40
It is equipped with horizontally disposed several filter plates 41.The side of the closing inner chamber 40 and the gas of the bubbling bed pneumatic filter enter
Mouth connection, the other side of the closing inner chamber is connected to the absorber 5.
The multiple sieve plates 42 being also vertically arranged in the closing inner chamber 40, the sieve plate 42 are set to the filter plate 41
Top with for polymerizeing flue gas.
The filter plate 41 is specially a kind of porous ceramic plate in the closing inner chamber 40, under the porous ceramic plate has
State structure：Including the skeleton that porous ceramics is constituted, it is formed with cellular nano-space in the skeleton, is held in the nano-space
It is equipped with polarization adsorption component, active slag particle and charcoal particle.
Specifically, as shown in fig. 7, the embodiment of the present invention provides the acquisition methods of the porous ceramic plate：
S301. the nano-tourmaline powder through Overheating Treatment is weighed.
S302. the nano-tourmaline powder is added water and stirred, and ptfe emulsion is added after ultrasonic disperse,
It is again stirring for.
S303. sodium alginate, sodium cellulose glycolate, active slag particle and charcoal particle are weighed, by itself and last step
Suddenly the liquid mixing obtained, then mixed liquor is obtained through ultrasonic disperse；
S304. by Al2O3Porous ceramic plate submerges the mixed liquor, by Al2O3Porous ceramic plate is put into sintering furnace, in nitrogen
Under protection, 2h is kept the temperature at 200 DEG C, then naturally cools to room temperature.
S305. by Al2O3Porous ceramic plate carries out electret polarization by the way of corona charging, stores charge.
The porous ceramic plate that the embodiment of the present invention obtains can inhale the dust in flue dust using electrostatic absorption principle
It is attached, improve dust filtration efficiency.Due to tourmaline carry out Overheating Treatment, when the temperature drops, tourmaline surface polarity meeting
It changes, the dust on its surface can be made to be detached from porous ceramic plate because homophilic charge is repelled each other and fall to closing inner chamber bottom just
Portion, convenient for the collection of dust.
Specifically, the absorber includes concentrating part and absorption portion.
The absorption portion is for absorbing SO in flue gas2The ammonium sulfite solution of formation flows automatically in oxidation trough, is oxidized slot bottom
The air that portion blasts, is oxidized to ammonium sulfate, and part of sulfuric acid ammonium salt solution backflows into concentrating part.
The concentrating part is used to the concentrated pump of ammonium sulfate squeezing into concentrate spraying layer, same reducing flue-gas temperature
When, itself is concentrated, and obtains solid content 5%-15% ammonium sulfate slurries.
The above disclosure is only the preferred embodiments of the present invention, cannot limit the right model of the present invention with this certainly
It encloses, therefore equivalent changes made in accordance with the claims of the present invention, is still within the scope of the present invention.
Claims (5)
1. a kind of automatic desulfurating dust-removing equipment, it is characterised in that：
The equipment includes：Air distribution outlet, combustion furnace, ceramic filter, bubbling bed pneumatic filter and the absorber being sequentially communicated；
The gas vent of the combustion furnace is connected to the gas access of the ceramic filter by first pipe, the ceramics mistake
The gas vent of filter is connected to the gas access of the bubbling bed pneumatic filter by second pipe；
The first diameter of the cross section of the junction of the gas access of the first pipe and the ceramic filter be it is variable,
The second diameter of the cross section of the junction of the gas access of the second pipe and the bubbling bed pneumatic filter is also can
Become.
2. a kind of automatic desulfurating dust-removing equipment according to claim 1, it is characterised in that：
The junction of the first pipe and combustion furnace gas vent is the first end of the first pipe, the first pipe
Junction with the gas access of the ceramic filter is the second end of the first pipe；The first end and second
It is connected between end by pipeline body.
3. a kind of automatic desulfurating dust-removing equipment according to claim 2, it is characterised in that：
The pipeline body is made of the flexible part of multiple fan brackets and the two neighboring fan bracket of connection；Fan bracket stretching, extension
Degree is different, then the diameter of the second end cross section is different.
4. a kind of automatic desulfurating dust-removing equipment according to claim 1, it is characterised in that：
Fan bracket and first end are rotatablely connected, and the interconnecting piece by rotating itself and first end changes the fan bracket
Extension degree is provided with arc interconnecting piece, the stretching, extension track of the arc interconnecting piece and the fan bracket at the second end
It matches, so that it is guaranteed that fan bracket is contacted with the second end always in stretching process.
5. a kind of automatic desulfurating dust-removing equipment according to claim 1, it is characterised in that：
The ceramic filter is the bilayer filter being made of first filter interconnected and the second filter, described
The preparation method of one filter filtration fraction includes：
By the first dedusting regenerant, the second dedusting regenerant and calcium hydroxide according to 1:1:5 proportion mixing；
Said mixture plus water are mixed, and roasted 2 hours；
Mixture after roasting is put into row grinding；
Obtained mixed powder is poured into hemispherical Si3N4In porous ceramics, by constantly rotating and gently shaking the hemisphere
The Si in face3N4Porous ceramics makes Si3N4Matrix powder is full of in porous ceramics hole；
By Si3N4Porous ceramics is put into sintering furnace, under nitrogen protection, 2h is kept the temperature at 800 DEG C, then naturally cools to room temperature.
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| CN201810656092.7A CN108837650A (en) | 2018-06-24 | 2018-06-24 | A kind of automatic desulfurating dust-removing equipment |
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| CN201810656092.7A CN108837650A (en) | 2018-06-24 | 2018-06-24 | A kind of automatic desulfurating dust-removing equipment |
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