CN205886585U - Desulfidation dedusting system - Google Patents
Desulfidation dedusting system Download PDFInfo
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- CN205886585U CN205886585U CN201620568295.7U CN201620568295U CN205886585U CN 205886585 U CN205886585 U CN 205886585U CN 201620568295 U CN201620568295 U CN 201620568295U CN 205886585 U CN205886585 U CN 205886585U
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- desulfurizing tower
- desulfurization
- tower
- removal system
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Abstract
The utility model provides a desulfidation dedusting system, the boiler connects gradually dust remover, desulfurizing tower, chimney through the flue, and the draught fan is arranged on the flue, the upper portion that wash water pump communicates the desulfurizing tower is crossed to the process water pipe sweetgum fruit, and circulation pipeline passes through the desulfurizing tower is connected to the circulating pump well lower part and depositing reservoir, and the thick liquid goes out the bottom and the thick liquid pond of water piping connection desulfurizing tower, adding pipe and dosing pump connection depositing reservoir are passed through to desulfurization medicament stirring pond, the sediment stuff pump passes through tube coupling sedimentation tank bottom, the fan passes through tube coupling thick liquid pond. The utility model has the characteristics of it is following: 1, use magnesium oxide as the desulfurization medicament, the desulfurization is efficient, 2, the consumption of desulfurizer is little, and raw material sources are reliable, 3, the working costs is low, 4, the operation is reliable. 5, process flow is short, 6, the key equipment is small, and the investment economizes, 7, the market prospect that the accessory substance was used multipurposely is good.
Description
Technical field
This utility model is related to a kind of pollution reducing facility, specifically provides a kind of desulfurization dust-removal system.
Background technology
At the twentieth century initial stage, the whole world enters the industrial age, and industrial production capacity is significantly lifted, but meanwhile brings but
Be heavy ground sacrificialing environment be cost.The unheard-of vocabulary such as malicious mist, haze tap again and again people tympanum it appears that to
People have beaten the alarm bell on " doomsday ".
Although in today of Industries place extensive development, the main source providing heat energy to industry remains dependence fuel boiler and sets
Standby.In addition to using the such as clean energy resource such as hydrogen, natural gas, bio-fuel, fuel boiler inevitably outwardly discharges
The atmosphere pollutions such as sulfur dioxide, oxynitride, flue dust；And produce in the middle of the process of natural gas, equally can produce sulfuration
The pollutant such as thing.In above-mentioned atmosphere pollution, the discharge of sulfide and oxynitride can cause acid rain, the excessive row of flue dust
Exoergic enough causes the heavily contaminated weather such as haze.As can be seen here, control boiler smoke discharge, can effectively alleviate environmental pollution and ask
Topic.
Utility model content
This utility model specifically provides a kind of desulfurization dust-removal system, and boiler 1 is sequentially connected cleaner unit 3, is taken off by flue 2
Sulfur tower 4, chimney 6, air-introduced machine 5 is arranged on flue 2；
Technique water lines 701 are communicated to the top of desulfurizing tower 4 by flush water pump 801, and circulation line 702 passes through circulating pump
The middle and lower part of 802 connection desulfurizing towers 4 and depositing reservoir 901, serosity outlet pipe 704 connects bottom and the slurry pool 904 of desulfurizing tower 4；
Desulfurization medicament stirring pool 903 passes through dosing pipe 703 and dosing pump 803 connects depositing reservoir 901；Pulp pump 804 leads to
Cross pipeline and connect sedimentation tank 902 bottom；Blower fan 10 connects slurry pool 904 by pipeline.
Wherein, desulfurizing tower 4 is five-layer structure spray column.Desulfurizing tower 4 is three layers of spraying layer, two layers of demisting layer, technique water pipe
Road enters tower mouth and is arranged in above third layer column plate 403 and the second layer column plate 402 of desulfurizing tower 4, and circulation line enters tower mouth and is arranged in
Between second layer column plate 402 and ground floor column plate 401
Circulation line enters tower mouth and arranges altogether at three, wherein the outlet of first circulation pipeline 7021 and second circulation pipeline 7022
It is arranged in the center of desulfurizing tower cross section, the outlet of circulation line the 3rd circulation line 7023 is arranged in desulfurizing tower cross section
At a quarter of diametrical position.The spray angles of spraying layer are 120 °.
Air-introduced machine 5 is arranged between boiler 1 and cleaner unit 3 or between cleaner unit 3 and desulfurizing tower 4.Specifically, air-introduced machine
5 are arranged between cleaner unit 3 and desulfurizing tower 4.
In this utility model, boiler 1 be boiler independently using or, two boilers simultaneously using and simultaneously by cigarette
Road 2 is connected on cleaner unit 3.
Cleaner unit 3 of the present utility model is for ceramic multi-tube dedusting, electrostatic precipitation, bag-type dust, cyclonic separation dedusting wherein
One or a combination set of.
This utility model is used magnesium oxide as desulfurization medicament, and desulfurization degree is not less than 95%.
Each function zoning of the desulfurizing tower that this utility model is used and effect:
1) uptake zone: this area includes absorption tower entrance and its above spraying layer, its major function is for absorbing flue gas
In acid contaminant and the material such as flying dust.
It is furnished with spraying layer, every group of spraying layer is made up of the main pipe of connecting branch, slurrying liquid distributed pipeline and nozzle in a, tower.
The layout design of b, shower and nozzle uniformly, covers the cross section of absorption tower ascending zone.
C, spray system adopt three circulating pumps to supply three layers of spray mode.
2) remove fog-zone: this area includes two-stage demister and 3 floor backwashing system.For the droplet carried secretly in separating flue,
Reduce the loss that the burn into upstream device reduces fouling and reduces absorbent and water.
A, leave absorption tower pallet flue gas pass through spiral board and 3 layers of countercurrent spray layer after, more continuously through two-layer demister
Serosity droplet contained by removing, the water droplet carrying amount of demister outlet is not more than 75mg/nm.
B, one-level demister upper and lower each arrangement one layer of washer jet.The spray of rinse water will take away one-level demister
Solid particle on following current face and adverse current face.Flue gas, after one-level demister, enters two grades of demisters.Two grades of demister bottoms
Also one layer of cleaning spraying layer of arrangement, flue gas passes through two grades of demisters, and flue gas that is scrubbed and purifying passes through outlet and flows out absorption tower,
Enter chimney through flue.
C, demister are made using 316l material, and two-stage demister is all rinsed with fresh water (FW), and flushing process passes through journey
Sequence control is automatically performed, and whole desulphurization system moisturizing can be realized by demister backwash.
This utility model desulfurization principle is as follows:
1st, the preparation of magnesia slurry
Mgo(is solid)+h2o=mg(oh)2(Gu)
mg(oh)2(Gu)+h2o=mg(oh)2(serosity)+h2o
mg(oh)2(serosity)=mg2++ 2oh-
2、so2Absorption
so2(gas)+h2o=h2so3
h2so3→h++hso3 -
hso3-→h++so3 2-
mg2++so3 2-+3h2o→mgso3·3h2o
mg2++so3 2-+6h2o→mgso3·6h2o
mg2++so3 2-+7h2o→mgso3·7h2o
so2+mgso3·6h2o→mg(hso3)2+5h2o
mg(oh)2+so2→mgso3+h2o
mgso3+h2o+so2→mg(hso3)2
mg(hso3)2+mg(oh)2+10h2o→2mgso3·6h2o
3rd, desulfurization product oxidation
2mgso3+o2+7h2o→2mgso4·7h2o
2mgso3+o2→2mgso4
This utility model, when using, relies primarily on the acidic materials such as cyclic absorption serosity sulfur dioxide absorption, and circulation is inhaled
The ph value receiving serosity is passed through to add mg (oh)2Controlling, usual ph value controls between 5.8～6.5 the amount of serosity.Oxidation reaction
It is typically required for the sufficiently long time.Oxidation reaction can carry out moving it is also possible to serosity will be absorbed in the slurry pool on absorption tower
Carry out to the oxidation trough of special setting.
Containing mgso4Circulation washing absorption liquid through further condensing crystallizing, the mgso of fertilizer grade can be produced4·
h2O is it is also possible to produce the mgso of technical grade4·7h2o.If not carrying out oxidation reaction or suppression mgso3Oxidation, can pass through
Regeneration method is by the mgso in washing absorption liquid3It is reduced into mgo to recycle as desulfurizing agent, and meanwhile by-product sulfur
Acid.
In this utility model, the flue gas after boiler smoke removing dust device purifies enters rotating stream tray scrubber by bottom of towe, cigarette in tower
Gas rises, and absorbing liquid is pulverized drips for mist, so that contact area between gas-liquid is increased dramatically, three layers of spray equipment of arrangement in tower,
So that flue gas is fully contacted with doctor solution, improve desulfuration efficiency.
Due to providing good gas-to-liquid contact condition, so in gas in tower2By akaline liquid good absorbing effect.Due to
Special internal structure design, determining it is a kind of efficient general type mass transfer apparatus, have that load is high, pressure drop is low, be difficult to block up,
The advantages of operating flexibility width, its combination property is better than the wet-desulfurizing dust remover commonly using both at home and abroad.
Desulfurization absorbing liquid is absorbing so2Afterwards mixed precipitation pond is certainly flow to by absorbing tower bottom floss hole.Precipitate contains
The relatively low mgso of water rate3, a small amount of mgso4And other is mainly derived from the flue dust in flue gas and the impurity in magnesia FGD agent, its
Processing method is discharged via submerged pump.
This utility model has following features:
1st, it is used mgo as desulfurization medicament, desulfuration efficiency is high.The efficiency of mgo wet desulphurization up to 95%～98%, due to
mg2+Radius be less than ca2+Radius, the reactivity of mgo is higher than cao, therefore mg (oh)2Alkalescence than ca (oh)2's
By force.In desulphurization reaction, the granule of cao and so2The caso that reaction generates4It is one layer of Hard Roll film, commonly referred to as this kind of phenomenon is parcel
Phenomenon.The granule that it hinders cao in peplos continues and so2Reaction.And the magnesium oxide that mgo method uses is relatively low by magnesium carbonate
Roasting temperature, that is, so-called " magnesia unslacked ".Magnesia unslacked has the characteristics that porous, activity are strong, degree of reaction is high.Its
Mgo granule and so2The mgso that reaction generates3、mgso4It is dissolved in water (loop slurry) so that mgo particle exterior surface soon
It is continuously updated and continues and so2Reaction, until this mgo granule total overall reaction finishes.Experiment shows in identical operating condition
Under, make absorbent ratio caco with mgo3The absorption efficiency making absorbent is high.
2nd, the consumption of desulfurizing agent is little, and raw material sources are reliable.Because the molecular weight of mgo is 40, caco3Molecular weight be
100, therefore from chemical reaction equilibrium formula, so of removing equivalent2The mgo amount consuming is only caco3The 40% of amount.If with commodity
Mgo content >=85% in light-burning magnesium powder, cao(molecular weight 56 in commodity Paris white) content >=50% meter, so of removing equivalent2
The light-burning magnesium powder amount consuming and the 42% of the Paris white amount consuming.
3rd, operating cost is low.Reach more than 95% desulfuration efficiency, mgo technique desulfurization liquid-gas ratio (l/g) is about 3～3.5l/
nm3, and caco3Technique desulfurization liquid-gas ratio is about 7～8 l/nm3.Consequent recycle slurry liquid measure ratio is about 1:3, therefore exists
On the capacity and power consumption of circulating pump and circulation pipe network, magnesium processes are only 1/3rd of calcium method, and the operating cost of magnesium processes is relatively low.
4th, reliable.One very prominent advantage of magnesium oxide method is that it is reliable.This is due to mgso4Dissolving
Degree is big, and the circulating absorption solution in desulfurizing tower is solution water circulation, and non-scaling does not produce sediment, do not set agitating device in absorption tower,
The operational reliability of therefore system improves, and the running rate of device is high, and desulfurized effect is good.And calcium method desulfurization is lime stone slurry and stone
Cream serum recycle, will take appropriate measures in operation prevents fouling and blocking.
5th, technological process is short.Magnesium processes desulfurization process is short compared with calcium method desulfurization process, does not typically need desulfurization by-product
The equipment for after-treatment of thing, thus reduce investment outlay and place.The draining of mgo technique desulfurizing tower is adjusted ph value, precipitation and oxidation
After Air Exposure, composite wastewater discharge standard can be reached, typically enter in boiler hydraulic(-ash) sluicing washing slag water sedimentation tank or city
Sewage treatment plant.
6th, key equipment small volume, reduced investment.Magnesium oxide wet processing uses has the plate column of porous plate and special knot
The atomizer of configuration formula, the high cycle speed passed through, mass-transfer efficiency is high, the suction compared with the spray column using with calcium method, used by magnesium processes
Receive tower small volume, lightweight, reduced investment.
7th, the market prospect of byproduct comprehensive utilization is good.If the by-product after wet magnesium oxide desulphurization exposes without peroxidating
Gas then can generate wet slag, wet slag can be used as agricultural fertilizer dewatering slurries.Base manure can directly be made, topdress and foliage fertilizer.Plant is just
The required amount of magnesium often developed generally dry weight 5g/kg about.Applying fertiliser containing magnesium not only can increase crop yield, and can improve product
The quality of product.For example applying fertiliser containing magnesium has good action to the yield and quality of Fructus Musae, Nicotiana tabacum L..Show according to the national overall survey of soil,
China's many Soils In The Regions magnesium deficiency is than more serious.Magnesium deficiency soil erosion is huge, accounts for the 5.8% of national soil erosion.If to magnesium deficiency
Soil application fertiliser containing magnesium, then whole year need fertiliser containing magnesium quantity very considerable.Therefore, produce mgso4Fertile or by mgso4It is configured to be combined
Fertilizer will have good market prospect.
Brief description
With reference to Figure of description, this utility model is described in further details:
Fig. 1 is desulfurization dust-removal system equipment schematic diagram.
Specific embodiment
Reference numeral illustrates:
1 boiler, 2 flues, 3 cleaner units, 4 desulfurizing towers, 5 air-introduced machines, 6 chimneys, 10 blower fans, 401 ground floor column plates, 402
Two layers of column plate, 403 third layer column plates, 701 technique water lines, 7021 first circulation pipelines, 7022 second circulation pipelines, 7,023
Three circulation lines, 703 dosing pipes, 704 serosity outlet pipes, 801 flush water pumps, 802 circulating pumps, 803 dosing pumps, 804 slurry
Pump, 901 depositing reservoirs, 902 sedimentation tanks, 903 desulfurization medicament stirring pools, 904 slurry pools.
Embodiment 1
The present embodiment specifically provides a kind of desulfurization dust-removal system, and boiler 1 is sequentially connected cleaner unit 3, desulfurization by flue 2
Tower 4, chimney 6, air-introduced machine 5 is arranged on flue 2；
Technique water lines 701 are communicated to the top of desulfurizing tower 4 by flush water pump 801, and circulation line 702 passes through circulating pump
The middle and lower part of 802 connection desulfurizing towers 4 and depositing reservoir 901, serosity outlet pipe 704 connects bottom and the slurry pool 904 of desulfurizing tower 4；
Desulfurization medicament stirring pool 903 passes through dosing pipe 703 and dosing pump 803 connects depositing reservoir 901；Pulp pump 804 leads to
Cross pipeline and connect sedimentation tank 902 bottom；Blower fan 10 connects slurry pool 904 by pipeline.
Wherein, desulfurizing tower 4 is five-layer structure spray column.Desulfurizing tower 4 is three layers of spraying layer, two layers of demisting layer, technique water pipe
Road enters tower mouth and is arranged in above third layer column plate 403 and the second layer column plate 402 of desulfurizing tower 4, and circulation line enters tower mouth and is arranged in
Between second layer column plate 402 and ground floor column plate 401
Circulation line enters tower mouth and arranges altogether at three, wherein the outlet of first circulation pipeline 7021 and second circulation pipeline 7022
It is arranged in the center of desulfurizing tower cross section, the outlet of the 3rd circulation line 7023 is arranged in desulfurizing tower cross-sectional diameter position
A quarter at.The spray angles of spraying layer are 120 °.
Air-introduced machine 5 is arranged between boiler 1 and cleaner unit 3 or between cleaner unit 3 and desulfurizing tower 4.Specifically, air-introduced machine
5 are arranged between cleaner unit 3 and desulfurizing tower 4.
In the present embodiment, boiler 1 be boiler independently using or, two boilers simultaneously using and simultaneously by flue
2 are connected on cleaner unit 3.
The cleaner unit 3 of the present embodiment be ceramic multi-tube dedusting, electrostatic precipitation, bag-type dust, cyclonic separation dedusting wherein it
One or a combination thereof.
The present embodiment is used magnesium oxide as desulfurization medicament, and desulfurization degree is not less than 95%.
Each function zoning of the desulfurizing tower that the present embodiment is used and effect:
1) uptake zone: this area includes absorption tower entrance and its above spraying layer, its major function is for absorbing flue gas
In acid contaminant and the material such as flying dust.
It is furnished with spraying layer, every group of spraying layer is made up of the main pipe of connecting branch, slurrying liquid distributed pipeline and nozzle in a, tower.
The layout design of b, shower and nozzle uniformly, covers the cross section of absorption tower ascending zone.
C, spray system adopt three circulating pumps to supply three layers of spray mode.
2) remove fog-zone: this area includes two-stage demister and 3 floor backwashing system.For the droplet carried secretly in separating flue,
Reduce the loss that the burn into upstream device reduces fouling and reduces absorbent and water.
A, leave absorption tower pallet flue gas pass through spiral board and 3 layers of countercurrent spray layer after, more continuously through two-layer demister
Serosity droplet contained by removing, the water droplet carrying amount of demister outlet is not more than 75mg/nm.
B, one-level demister upper and lower each arrangement one layer of washer jet.The spray of rinse water will take away one-level demister
Solid particle on following current face and adverse current face.Flue gas, after one-level demister, enters two grades of demisters.Two grades of demister bottoms
Also one layer of cleaning spraying layer of arrangement, flue gas passes through two grades of demisters, and flue gas that is scrubbed and purifying passes through outlet and flows out absorption tower,
Enter chimney through flue.
C, demister are made using 316l material, and two-stage demister is all rinsed with fresh water (FW), and flushing process passes through journey
Sequence control is automatically performed, and whole desulphurization system moisturizing can be realized by demister backwash.
The present embodiment desulfurization principle is as follows:
1st, the preparation of magnesia slurry
Mgo(is solid)+h2o=mg(oh)2(Gu)
mg(oh)2(Gu)+h2o=mg(oh)2(serosity)+h2o
mg(oh)2(serosity)=mg2++ 2oh-
2、so2Absorption
so2(gas)+h2o=h2so3
h2so3→h++hso3 -
hso3-→h++so3 2-
mg2++so3 2-+3h2o→mgso3·3h2o
mg2++so3 2-+6h2o→mgso3·6h2o
mg2++so3 2-+7h2o→mgso3·7h2o
so2+mgso3·6h2o→mg(hso3)2+5h2o
mg(oh)2+so2→mgso3+h2o
mgso3+h2o+so2→mg(hso3)2
mg(hso3)2+mg(oh)2+10h2o→2mgso3·6h2o
3rd, desulfurization product oxidation
2mgso3+o2+7h2o→2mgso4·7h2o
2mgso3+o2→2mgso4
The present embodiment, when using, relies primarily on the acidic materials such as cyclic absorption serosity sulfur dioxide absorption, cyclic absorption
The ph value of serosity is passed through to add mg (oh)2Controlling, usual ph value controls between 5.8～6.5 the amount of serosity.Oxidation reaction is led to
Often need the sufficiently long time.Oxidation reaction can be carried out it is also possible to move to absorbing serosity in the slurry pool on absorption tower
Carry out in the oxidation trough of special setting.
Containing mgso4Circulation washing absorption liquid through further condensing crystallizing, the mgso of fertilizer grade can be produced4·
h2O is it is also possible to produce the mgso of technical grade4·7h2o.If not carrying out oxidation reaction or suppression mgso3Oxidation, can pass through
Regeneration method is by the mgso in washing absorption liquid3It is reduced into mgo to recycle as desulfurizing agent, and meanwhile by-product sulfur
Acid.
In the present embodiment, the flue gas after boiler smoke removing dust device purifies enters rotating stream tray scrubber by bottom of towe, flue gas in tower
Rise, and absorbing liquid is pulverized drip for mist, so that contact area between gas-liquid is increased dramatically, in tower, three layers of spray equipment of arrangement, make
Flue gas is fully contacted with doctor solution, improves desulfuration efficiency.
Due to providing good gas-to-liquid contact condition, so in gas in tower2By akaline liquid good absorbing effect.Due to
Special internal structure design, determining it is a kind of efficient general type mass transfer apparatus, have that load is high, pressure drop is low, be difficult to block up,
The advantages of operating flexibility width, its combination property is better than the wet-desulfurizing dust remover commonly using both at home and abroad.
Desulfurization absorbing liquid is absorbing so2Afterwards mixed precipitation pond is certainly flow to by absorbing tower bottom floss hole.Precipitate contains
The relatively low mgso of water rate3, a small amount of mgso4And other is mainly derived from the flue dust in flue gas and the impurity in magnesia FGD agent, its
Processing method is discharged via submerged pump.
The present embodiment has following features:
1st, it is used mgo as desulfurization medicament, desulfuration efficiency is high.The efficiency of mgo wet desulphurization up to 95%～98%, due to
mg2+Radius be less than ca2+Radius, the reactivity of mgo is higher than cao, therefore mg (oh)2Alkalescence than ca (oh)2's
By force.In desulphurization reaction, the granule of cao and so2The caso that reaction generates4It is one layer of Hard Roll film, commonly referred to as this kind of phenomenon is parcel
Phenomenon.The granule that it hinders cao in peplos continues and so2Reaction.And the magnesium oxide that mgo method uses is relatively low by magnesium carbonate
Roasting temperature, that is, so-called " magnesia unslacked ".Magnesia unslacked has the characteristics that porous, activity are strong, degree of reaction is high.Its
Mgo granule and so2The mgso that reaction generates3、mgso4It is dissolved in water (loop slurry) so that mgo particle exterior surface soon
It is continuously updated and continues and so2Reaction, until this mgo granule total overall reaction finishes.Experiment shows in identical operating condition
Under, make absorbent ratio caco with mgo3The absorption efficiency making absorbent is high.
2nd, the consumption of desulfurizing agent is little, and raw material sources are reliable.Because the molecular weight of mgo is 40, caco3Molecular weight be
100, therefore from chemical reaction equilibrium formula, so of removing equivalent2The mgo amount consuming is only caco3The 40% of amount.If with commodity
Mgo content >=85% in light-burning magnesium powder, cao(molecular weight 56 in commodity Paris white) content >=50% meter, so of removing equivalent2
The light-burning magnesium powder amount consuming and the 42% of the Paris white amount consuming.
3rd, operating cost is low.Reach more than 95% desulfuration efficiency, mgo technique desulfurization liquid-gas ratio (l/g) is about 3～3.5l/
nm3, and caco3Technique desulfurization liquid-gas ratio is about 7～8 l/nm3.Consequent recycle slurry liquid measure ratio is about 1:3, therefore exists
On the capacity and power consumption of circulating pump and circulation pipe network, magnesium processes are only 1/3rd of calcium method, and the operating cost of magnesium processes is relatively low.
4th, reliable.One very prominent advantage of magnesium oxide method is that it is reliable.This is due to mgso4Dissolving
Degree is big, and the circulating absorption solution in desulfurizing tower is solution water circulation, and non-scaling does not produce sediment, do not set agitating device in absorption tower,
The operational reliability of therefore system improves, and the running rate of device is high, and desulfurized effect is good.And calcium method desulfurization is lime stone slurry and stone
Cream serum recycle, will take appropriate measures in operation prevents fouling and blocking.
5th, technological process is short.Magnesium processes desulfurization process is short compared with calcium method desulfurization process, does not typically need desulfurization by-product
The equipment for after-treatment of thing, thus reduce investment outlay and place.The draining of mgo technique desulfurizing tower is adjusted ph value, precipitation and oxidation
After Air Exposure, composite wastewater discharge standard can be reached, typically enter in boiler hydraulic(-ash) sluicing washing slag water sedimentation tank or city
Sewage treatment plant.
6th, key equipment small volume, reduced investment.Magnesium oxide wet processing uses has the plate column of porous plate and special knot
The atomizer of configuration formula, the high cycle speed passed through, mass-transfer efficiency is high, the suction compared with the spray column using with calcium method, used by magnesium processes
Receive tower small volume, lightweight, reduced investment.
7th, the market prospect of byproduct comprehensive utilization is good.If the by-product after wet magnesium oxide desulphurization exposes without peroxidating
Gas then can generate wet slag, wet slag can be used as agricultural fertilizer dewatering slurries.Base manure can directly be made, topdress and foliage fertilizer.Plant is just
The required amount of magnesium often developed generally dry weight 5g/kg about.Applying fertiliser containing magnesium not only can increase crop yield, and can improve product
The quality of product.For example applying fertiliser containing magnesium has good action to the yield and quality of Fructus Musae, Nicotiana tabacum L..Show according to the national overall survey of soil,
China's many Soils In The Regions magnesium deficiency is than more serious.Magnesium deficiency soil erosion is huge, accounts for the 5.8% of national soil erosion.If to magnesium deficiency
Soil application fertiliser containing magnesium, then whole year need fertiliser containing magnesium quantity very considerable.Therefore, produce mgso4Fertile or by mgso4It is configured to be combined
Fertilizer will have good market prospect.
Embodiment 2
The present embodiment adopts double alkali method desulfurizing dedusting, that is, piece alkali and Calx are used as desulfurization medicament, remaining structure, enforcement
Mode and Expected Results are same as Example 1.
Embodiment 3
The present embodiment removes and is not provided with circulation line 7022 and 7023, remaining structure, embodiment and Expected Results and reality
Apply example 1 identical.
Embodiment 4
Between the air-introduced machine 5 of the present embodiment is arranged between boiler 1 and cleaner unit 3, remaining structure, embodiment and pre-
Phase effect is same as Example 1.
Embodiment 5
The present embodiment arranges a boiler, and remaining structure, embodiment and Expected Results are same as Example 1.
Above-described embodiment is only that technology design of the present utility model and feature are described, its object is to allow and is familiar with technique
Personage will appreciate that content of the present utility model and implement according to this, protection domain of the present utility model can not be limited with this.
All equivalence changes made according to this utility model spirit or modification, all should cover protection domain of the present utility model it
Interior.
Claims (10)
1. a kind of desulfurization dust-removal system it is characterised in that: boiler (1) is sequentially connected cleaner unit (3), desulfurizing tower by flue (2)
(4), chimney (6), air-introduced machine (5) is arranged on flue (2)；
Technique water lines (701) are communicated to the top of desulfurizing tower (4) by flush water pump (801), and circulation line (702) passes through to follow
Ring pump (802) connects middle and lower part and the depositing reservoir (901) of desulfurizing tower (4), and serosity outlet pipe (704) connects the bottom of desulfurizing tower (4)
Portion and slurry pool (904)；
Dosing pipe (703) is passed through in desulfurization medicament stirring pool (903) and dosing pump (803) connects depositing reservoir (901)；
Pulp pump (804) connects sedimentation tank (902) bottom by pipeline；
Blower fan (10) connects slurry pool (904) by pipeline.
2. according to the desulfurization dust-removal system described in claim 1 it is characterised in that: desulfurizing tower (4) be five-layer structure spray column.
3. according to the desulfurization dust-removal system described in claim 2 it is characterised in that: desulfurizing tower (4) is three layers of spraying layer, two layers remove
Mist layer, technique water lines enter tower mouth and are arranged in above third layer column plate (403) and the second layer column plate (402) of desulfurizing tower (4), follow
Endless tube road enters tower mouth and is arranged between second layer column plate (402) and ground floor column plate (401).
4. according to the desulfurization dust-removal system described in claim 3 it is characterised in that: circulation line enters tower mouth and arranges altogether at three, its
The outlet of middle first circulation pipeline (7021) and second circulation pipeline (7022) is arranged in the center of desulfurizing tower cross section, the
The outlet of three circulation lines (7023) is arranged at a quarter of desulfurizing tower cross-sectional diameter position.
5. according to the desulfurization dust-removal system described in claim 1 it is characterised in that: air-introduced machine (5) is arranged in boiler (1) and dedusting
Between device (3) or between cleaner unit (3) and desulfurizing tower (4).
6. according to the desulfurization dust-removal system described in claim 5 it is characterised in that: air-introduced machine (5) be arranged in cleaner unit (3) with de-
Between sulfur tower (4).
7. according to the desulfurization dust-removal system described in claim 1 it is characterised in that: boiler (1) be boiler independently use or
Person, two boilers simultaneously using and be connected on cleaner unit (3) by flue (2) simultaneously.
8. according to the desulfurization dust-removal system described in claim 3 it is characterised in that: the spray angles of spraying layer be 120 °.
9. according to the desulfurization dust-removal system described in claim 1 it is characterised in that: described cleaner unit (3) removes for ceramic multi-tube
One of dirt, electrostatic precipitation, bag-type dust, cyclonic separation dedusting or a combination thereof.
10. according to the arbitrary described desulfurization dust-removal system of claim 1 ~ 9 it is characterised in that: magnesium oxide is used as desulfurization medicine
Agent, desulfurization degree is not less than 95%.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620568295.7U CN205886585U (en) | 2016-06-14 | 2016-06-14 | Desulfidation dedusting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620568295.7U CN205886585U (en) | 2016-06-14 | 2016-06-14 | Desulfidation dedusting system |
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| CN205886585U true CN205886585U (en) | 2017-01-18 |
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| CN201620568295.7U Expired - Fee Related CN205886585U (en) | 2016-06-14 | 2016-06-14 | Desulfidation dedusting system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108686482A (en) * | 2018-07-12 | 2018-10-23 | 佛山市信利成机电设备有限公司 | Outer circulation desulphurization system and apply its outer circulation sulfur method |
| CN110553513A (en) * | 2018-05-31 | 2019-12-10 | 北新集团建材股份有限公司 | Waste heat recovery system of drying kiln |
| CN115074552A (en) * | 2022-06-09 | 2022-09-20 | 航大(厦门)新材科技有限公司 | Clean extraction equipment of valuable metal |
-
2016
- 2016-06-14 CN CN201620568295.7U patent/CN205886585U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110553513A (en) * | 2018-05-31 | 2019-12-10 | 北新集团建材股份有限公司 | Waste heat recovery system of drying kiln |
| CN108686482A (en) * | 2018-07-12 | 2018-10-23 | 佛山市信利成机电设备有限公司 | Outer circulation desulphurization system and apply its outer circulation sulfur method |
| CN115074552A (en) * | 2022-06-09 | 2022-09-20 | 航大(厦门)新材科技有限公司 | Clean extraction equipment of valuable metal |
| CN115074552B (en) * | 2022-06-09 | 2023-09-01 | 航大(厦门)新材科技有限公司 | Clean extraction equipment of valuable metal |
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