CN109833768A - A kind of electrolytic aluminum smoke desulfurization porous solid water desulfurization block and preparation method thereof - Google Patents
A kind of electrolytic aluminum smoke desulfurization porous solid water desulfurization block and preparation method thereof Download PDFInfo
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- CN109833768A CN109833768A CN201910288840.5A CN201910288840A CN109833768A CN 109833768 A CN109833768 A CN 109833768A CN 201910288840 A CN201910288840 A CN 201910288840A CN 109833768 A CN109833768 A CN 109833768A
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- desulfurization
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- electrolytic aluminum
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 104
- 238000006477 desulfuration reaction Methods 0.000 title claims abstract description 100
- 230000023556 desulfurization Effects 0.000 title claims abstract description 97
- 239000007787 solid Substances 0.000 title claims abstract description 69
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 46
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 46
- 239000000779 smoke Substances 0.000 title claims abstract description 40
- 238000002360 preparation method Methods 0.000 title claims abstract description 15
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims abstract description 26
- 239000002245 particle Substances 0.000 claims abstract description 20
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 claims abstract description 17
- 239000000347 magnesium hydroxide Substances 0.000 claims abstract description 17
- 229910001862 magnesium hydroxide Inorganic materials 0.000 claims abstract description 17
- 239000002994 raw material Substances 0.000 claims abstract description 13
- 239000007767 bonding agent Substances 0.000 claims abstract description 10
- 238000003756 stirring Methods 0.000 claims description 15
- 239000010451 perlite Substances 0.000 claims description 12
- 235000019362 perlite Nutrition 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 10
- 235000019353 potassium silicate Nutrition 0.000 claims description 10
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 10
- 239000004568 cement Substances 0.000 claims description 7
- 239000010455 vermiculite Substances 0.000 claims description 7
- 235000019354 vermiculite Nutrition 0.000 claims description 7
- 229910052902 vermiculite Inorganic materials 0.000 claims description 7
- 238000001035 drying Methods 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 4
- 230000003009 desulfurizing effect Effects 0.000 abstract description 13
- 238000005868 electrolysis reaction Methods 0.000 abstract description 13
- 238000006243 chemical reaction Methods 0.000 abstract description 7
- 159000000003 magnesium salts Chemical class 0.000 abstract description 7
- JLVVSXFLKOJNIY-UHFFFAOYSA-N Magnesium ion Chemical compound [Mg+2] JLVVSXFLKOJNIY-UHFFFAOYSA-N 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 5
- 229910001425 magnesium ion Inorganic materials 0.000 abstract description 5
- 239000003546 flue gas Substances 0.000 description 22
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 19
- 239000007789 gas Substances 0.000 description 12
- 238000000034 method Methods 0.000 description 11
- RAHZWNYVWXNFOC-UHFFFAOYSA-N sulfur dioxide Inorganic materials O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 11
- 239000007921 spray Substances 0.000 description 10
- 239000000945 filler Substances 0.000 description 9
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 6
- 239000007788 liquid Substances 0.000 description 6
- 239000010440 gypsum Substances 0.000 description 5
- 229910052602 gypsum Inorganic materials 0.000 description 5
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 4
- 239000004411 aluminium Substances 0.000 description 4
- 230000008929 regeneration Effects 0.000 description 4
- 238000011069 regeneration method Methods 0.000 description 4
- 239000011593 sulfur Substances 0.000 description 4
- 229910052717 sulfur Inorganic materials 0.000 description 4
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 3
- 235000019738 Limestone Nutrition 0.000 description 3
- 235000011941 Tilia x europaea Nutrition 0.000 description 3
- 239000000292 calcium oxide Substances 0.000 description 3
- 235000012255 calcium oxide Nutrition 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 3
- 239000004571 lime Substances 0.000 description 3
- 239000006028 limestone Substances 0.000 description 3
- 238000005303 weighing Methods 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- TWRXJAOTZQYOKJ-UHFFFAOYSA-L Magnesium chloride Chemical compound [Mg+2].[Cl-].[Cl-] TWRXJAOTZQYOKJ-UHFFFAOYSA-L 0.000 description 2
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- 235000019504 cigarettes Nutrition 0.000 description 2
- 239000004088 foaming agent Substances 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 206010010741 Conjunctivitis Diseases 0.000 description 1
- 201000004484 acute conjunctivitis Diseases 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000000875 corresponding effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 229910001629 magnesium chloride Inorganic materials 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000000505 pernicious effect Effects 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 239000002594 sorbent Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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- Treating Waste Gases (AREA)
- Electrolytic Production Of Metals (AREA)
Abstract
The invention belongs to aluminum electrolysis industry electrolytic aluminum smoke technical field of desulfurization, and in particular to a kind of electrolytic aluminum smoke desulfurization porous solid water desulfurization block and preparation method thereof.Porous solid water desulfurization block is prepared by the raw material of following mass percent: magnesium hydroxide 40% ~ 70%, solid water particle 5% ~ 25%, hydrochloric acid 5% ~ 20%, bonding agent 5% ~ 15% and water 10% ~ 30%.There is interconnected hole inside the desulfurization block, SO can be extended2Residence time in desulfurization block, it can be suitable for that electrolytic aluminum smoke amount is big, SO2The low feature of concentration；There is solid water particle good water suction solid water effect to form a large amount of moisture film on desulfurization block surface under the conditions of Sprayer Circulation water, enables molten be quickly dissolved in water of magnesium salts generated and is carried over desulfurizing tower, magnesium ion enters desulfurization chamber and SO after being replaced2The reaction was continued, so as to the SO in efficient removal electrolytic aluminum smoke2, realize minimum discharge.
Description
Technical field
The invention belongs to aluminum electrolysis industry electrolytic aluminum smoke technical field of desulfurization, and in particular to a kind of electrolytic aluminum smoke desulfurization
With porous solid water desulfurization block and preparation method thereof.
Background technique
Existing prebaked cell for aluminum-reduction can generate CO in electrolytic process2、CO、SO2With pernicious gases (the abbreviation anode such as HF
Gas), the anodic gas is by the acute conjunctivitis mouth evolution stitched in electrolytic cell, into upper part of the electrolytic cell, after cigarette is pumped by gas gathering system
In feed channel, while a large amount of outside air is pumped into electrolytic cell smoke evacuation system together, forms electrolysis flue gas.The gas of electrolysis flue gas
Body flow is big, and flue-gas temperature is low (about 120 DEG C), SO2The low about 300mg/m of content3Left and right.Aluminum electrolysis industry implements dry method at present
Defluorinate, and for the SO in flue gas2Effective control measures are not yet taken, entire aluminum electrolysis industry energy-saving and emission-reduction work accepting a heavy burden is made
And road is remote.
Limestone-gypsum Wet Flue Gas Desulfurization Process technology in existing Wet Flue Gas Desulfurization Technique need to pass through since limestone activity is lower
Increase the spray flow of absorbing liquid, improve liquid-gas ratio to guarantee enough desulfuration efficiencies, therefore operating cost is higher, and it is high with activity
Pulverized limestone replace lime stone, although desulfuration efficiency can be improved, there are in tower be easy fouling, cause gas-liquid contactor blocking etc.
Problem；Although ammonia-process desulfurization technique desulfuration efficiency is high, ammonia is volatile to keep sorbent utilization not high, generates shadow to working environment
It rings, additionally needs huge water circulation system, operating cost is high.Wet Flue Gas Desulfurization Technique is successful in power plant's application, but is electrolysed
The characteristic of flue gas and power plant be not identical, in addition some regional water shortages, and operating cost may be high, therefore currently without effectively
SO in purifying electrolysis aluminium flue gas2Measure.
It is provided in " aluminum i ndustry pollutant emission standard " (GB25465-2010), flue gas in Aluminium Industry production process
SO2Concentration of emission limit value is from 200mg/m3It is adjusted to 100mg/m3.According to " Jing-jin-ji region and surrounding area 2018-2019 atmosphere pollution
Comprehensive treatment is assaulted fortified position action scheme " it requires, the coloured special emission limit of industry strict implement atmosphere pollution, each province and city are also formulated
Corresponding action scheme.Require to carry forward vigorously aluminum electrolysis industry minimum discharge transformation pilot, SO as certain is saved2Concentration of emission is not high
In 50mg/m3.In view of the increasingly severe of environmental protection policy, aluminum electrolysis industry actual conditions need to be directed to, is exploited natural resources and is consumed less, runs
Desulfurization technology at low cost is significant to electrolytic aluminum smoke pollution problem is solved.
Publication No. is that the patent of invention of CN 106422746A discloses a kind of filler and its system for flue gas desulfurization and denitrification
Preparation Method, filler is made of magnesia, magnesium chloride, phosphoric acid, glass fibre, adhesive and foaming agent, after being handled by foaming agent,
It is porous structure inside filler, the surface ratio of filler is increased, but is not connected mutually between the Kong Yukong inside this filler
Logical, be equivalent to inside filler makes the volume expansion of filler to make surface than increasing full of bubble, therefore the filler cannot increase cigarette
Residence time of the gas inside filler may be only available for sulfur content height (1000~3000mg/m in flue gas3) the out of stock place of desulfurization
Reason is big for gas flow, flue-gas temperature is low, SO2The low electrolysis flue gas of content is handled and is not suitable for.
Summary of the invention
It can be applicable in that electrolytic aluminum smoke amount is big, flue-gas temperature is low, SO the purpose of the present invention is to provide one kind2The low spy of concentration
Electrolytic aluminum smoke desulfurization porous solid water desulfurization block and preparation method thereof of point.
To achieve the above object, the invention adopts the following technical scheme:
The present invention provides a kind of electrolytic aluminum smoke desulfurization porous solid water desulfurization block, by the raw material preparation of following mass percent
At: magnesium hydroxide 40%~70%, solid water particle 5%~25%, hydrochloric acid 5%~20%, bonding agent 5%~15% and water 10%
~30%.
Preferably, the solid water particle is one of clinker, perlite or vermiculite or a variety of.
Preferably, the partial size of the solid water particle is 1~6mm.
Preferably, the bonding agent is one or both of cement, solid water glass.
The present invention also provides a kind of electrolytic aluminum smoke desulfurization preparation methods of porous solid water desulfurization block, including following step
It is rapid:
A: raw material is weighed by above-mentioned mass percent, magnesium hydroxide, bonding agent and water are put into blender, 30~100r/min
Stir 1~10min；Then hydrochloric acid is added, 30~100r/min stirs 1~10min；Add solid water particle, 30~100r/
Min stirs 1~5min and obtains mixed material；
B: being added to mixed material in step A in mold and be compacted, and prepares porous solid water desulfurization block, spare after drying.
Preferably, the solid water particle is one of clinker, perlite or vermiculite or a variety of.
Preferably, the partial size of the solid water particle is 1~6mm.
Preferably, the bonding agent is one or both of cement, solid water glass.
Compared with prior art, the beneficial effects of the present invention are:
Inventive desulfurization block uses inner skeleton of the solid water particle as desulfurization block, is cohered magnesium hydroxide in solid water with bonding agent
Particle surface, then block structure is made.There is interconnected hole inside the desulfurization block, SO can be extended2Stop in desulfurization block
The time is stayed, it can be suitable for electrolytic aluminum smoke amount is big, flue-gas temperature is low, SO2The low feature of concentration is abundant with magnesium hydroxide
Reaction generates magnesium salts soluble easily in water；And solid water particle has good water suction solid water effect, under the conditions of Sprayer Circulation water,
Desulfurization block surface forms a large amount of moisture film, enables molten be quickly dissolved in water of magnesium salts generated and is carried over desulfurizing tower, passes through reaction
After slot is reacted with quick lime or white lime, magnesium ion, which is replaced out, enters recirculated water, recirculated water and gypsum in subsider into
Row makes circulating water regeneration after being separated by solid-liquid separation, and the magnesium ion in recirculated water enters desulfurization chamber and SO2The reaction was continued, so as to efficiently take off
Except the SO in electrolytic aluminum smoke2, realize minimum discharge.Using the sulfur method of inventive desulfurization block, compared with Gypsum Wet
Sulfur removal technology is invested, circulation water consumption low with operating cost and is greatly reduced.
Detailed description of the invention
Fig. 1 is the schematic diagram of electrolytic aluminum smoke desulfurizer in the embodiment of the present invention.
Numbering in the drawing: 1 is inlet air stack, and 2 be blower, and 3 be desulfurizing tower, and 4 be reactive tank, and 5 be subsider, and 6 be overflow
Slot, 8 be smoke pipeline.
Specific embodiment
The following examples are intended to illustrate the invention, but is not used to limit the scope of protection of the present invention.Unless otherwise specified, real
Apply the conventional means that technological means used in example is well known to those skilled in the art.Test method in following embodiments, such as
It is conventional method without special instruction.
Embodiment one
A kind of porous solid water desulfurization block of electrolytic aluminum smoke desulfurization, is prepared by the raw material of following quality: magnesium hydroxide 50kg,
Perlite 12kg, hydrochloric acid 10kg, solid water glass 8kg and water 20kg.The partial size of perlite is 1mm.
The preparation method of the porous solid water desulfurization block of above-mentioned electrolytic aluminum smoke desulfurization, comprising the following steps:
A: weighing raw material by above-mentioned quality, magnesium hydroxide, solid water glass and water be put into blender, 100r/min stirring
10min；Then hydrochloric acid is added, 100r/min stirs 10min；Perlite is added, 100r/min stirring 5min obtains mixture
Material；
B: being added to mixed material in step A in mold and be compacted, and prepares porous solid water desulfurization block, spare after drying.
Embodiment two
A kind of porous solid water desulfurization block of electrolytic aluminum smoke desulfurization, is prepared by the raw material of following quality: magnesium hydroxide 40kg,
Clinker 5kg, hydrochloric acid 20kg, cement 5kg, solid water glass 10kg and water 20kg.The partial size of clinker is 6mm.
The preparation method of the porous solid water desulfurization block of above-mentioned electrolytic aluminum smoke desulfurization, comprising the following steps:
A: weighing raw material by above-mentioned quality, magnesium hydroxide, solid water glass and water be put into blender, 30r/min stirring
3min；Then hydrochloric acid is added, 60r/min stirs 5min；Perlite is added, 80r/min stirring 3min obtains mixed material；
B: being added to mixed material in step A in mold and be compacted, and prepares porous solid water desulfurization block, spare after drying.
Embodiment three
A kind of porous solid water desulfurization block of electrolytic aluminum smoke desulfurization, is prepared by the raw material of following quality: magnesium hydroxide 70kg,
Vermiculite 10kg, hydrochloric acid 5kg, cement 5kg and water 10kg.The partial size of perlite is 1mm.
The preparation method of the porous solid water desulfurization block of above-mentioned electrolytic aluminum smoke desulfurization, comprising the following steps:
A: weighing raw material by above-mentioned quality, magnesium hydroxide, solid water glass and water be put into blender, 60r/min stirring
1min；Then hydrochloric acid is added, 30r/min stirs 1min；Perlite is added, 30r/min stirring 1min obtains mixed material；
B: being added to mixed material in step A in mold and be compacted, and prepares porous solid water desulfurization block, spare after drying.
Example IV
A kind of porous solid water desulfurization block of electrolytic aluminum smoke desulfurization, is prepared by the raw material of following quality: magnesium hydroxide 40kg,
Vermiculite 10kg, hydrochloric acid 5kg, solid water glass 15kg and water 30kg.The partial size of vermiculite is 3mm.
Embodiment five
A kind of porous solid water desulfurization block of electrolytic aluminum smoke desulfurization, is prepared by the raw material of following quality: magnesium hydroxide 40kg,
Perlite 25kg, hydrochloric acid 5kg, cement 5kg and water 25kg.The partial size of perlite is 4mm.
Application Example
Test site: Henan electrolytic aluminium factory 400kA series electrolytic cell
As shown in Figure 1, electrolytic aluminum smoke desulfurizer, the device include smoke-intake pipe road 1, blower 2, desulfurizing tower 3, smoke pipeline 8,
Spray water circle device, reactive tank 4, subsider 5 and overflow launder 6；
Desulfurizing tower 3 includes that the multi-layer desulfurization room of lower part is arranged in and is arranged in the gas gathering mask on top, adjacent two layers desulfurization chamber by every
Plate separates, and porous solid water desulfurization block is stacked on partition, and venthole is uniformly provided on partition, and the aperture of venthole is less than porous solid
The size of water desulfurization block；
Spray water circle device is set to the top of every layer of desulfurization chamber, spray water circle device include radially distribute it is multiple
Spray tube and the spray head being uniformly arranged along each spray tube；
Smoke-intake pipe road 1 connects the air inlet of 3 lowest level desulfurization chamber of desulfurizing tower by blower 2, and gas gathering mask outlet connects the smoke
Pipeline, by pump connection 4 entrance of reactive tank, the outlet of reactive tank 4 is entered the liquid outlet of 3 bottom of desulfurizing tower by pump connection subsider 5
Mouthful, the outlet of subsider 5 is higher than 6 entrance of overflow launder, and the outlet of subsider 5 connects 6 entrance of overflow launder by pipeline, and overflow launder 6 exports
Each spray tube is connected by pump.
Experimental condition: the porous solid water desulfurization block prepared using embodiment 1 handles 70 400kA series electrolytic cell discharges
Electrolytic aluminum smoke, exhaust gas volumn be 500,000 Nm3/h、SO2260~300mg/m of content3；Desulfurizing tower long 12.6m, wide 12.4m, height
19.75m is made of 3 layers of desulfurization chamber, 70 tons of the porous solid water desulfurization block of every layer of desulfurization indoor placement, and the size of desulfurization block is 100mm
× 100mm × 100mm, piling height about 1.5m；The circulating water flow for spraying water circle device is 80m3/h.It is loaded in reactive tank
Quick lime.
Electrolysis flue gas is blasted in desulfurizing tower 3 by blower 2 in smoke-intake pipe road 1, and desulfurizing tower 3 includes the multi-layer desulfurization room of lower part
With the gas gathering mask on top, porous solid water desulfurization block is uniformly stacked in every layer of desulfurization chamber, every layer of desulfurization chamber top connects
Spray water circle device is connect, porous solid water desulfurization block and SO in flue gas under recirculated water effect2Haptoreaction generates magnesium salts, remaining
Flue gas is discharged after the gas gathering mask on 3 top of desulfurizing tower collects by smoke pipeline 8；
Circulation fluid containing magnesium salts collects in 3 bottom of desulfurizing tower through pumping the quick lime or ripe stone that enter in reactive tank 4, with reactive tank 4
Ash reaction obtains solidliquid mixture；The solidliquid mixture enters subsider 5,5 upper liquid conduct of subsider after sedimentation through pump
The overflow of regeneration cycle water is squeezed into spray water circle device through pump and is recycled into overflow launder 6, regeneration cycle water, 5 lower part of subsider
Solid periodically produces.The results are shown in Table 1.
Content of sulfur dioxide in electrolysis flue gas before and after 1 desulfurization of table
Inventive desulfurization block uses inner skeleton of the solid water particle as desulfurization block, is cohered magnesium hydroxide with bonding agent
Solid water particle surface, then block structure is made.There is interconnected hole inside the desulfurization block, SO can be extended2In desulfurization block
Residence time, can be suitable for that electrolytic aluminum smoke amount is big, SO2The low feature of concentration is sufficiently reacted raw with magnesium hydroxide
At magnesium salts soluble easily in water；And solid water particle has good water suction solid water effect, under the conditions of Sprayer Circulation water, in desulfurization block
Surface forms a large amount of moisture film, enables molten be quickly dissolved in water of magnesium salts generated and is carried over desulfurizing tower, passes through reactive tank and life
After lime or white lime reaction, magnesium ion, which is replaced out, enters recirculated water, and recirculated water and gypsum carry out solid-liquid in subsider
Make circulating water regeneration after separation, the magnesium ion in recirculated water enters desulfurization chamber and SO2The reaction was continued, so as to efficient removal electrolysis
SO in aluminium flue gas2, realize minimum discharge.Using the sulfur method of inventive desulfurization block, compared with Limestone-gypsum Wet Flue Gas Desulfurization Process work
Skill is invested, circulation water consumption low with operating cost and is greatly reduced.
The embodiment of the above, only presently preferred embodiments of the present invention, is only used to explain the present invention, not limit
The scope of the present invention processed to those of ordinary skill in the art certainly can be according to skill disclosed in this specification
Art content makes other embodiments easily by way of replacing or changing, therefore all made in the principle of the present invention
Changes and improvements etc., should be included in scope of the present invention patent.
Claims (8)
1. a kind of porous solid water desulfurization block of electrolytic aluminum smoke desulfurization, which is characterized in that by the raw material system of following mass percent
It is standby to form: magnesium hydroxide 40% ~ 70%, solid water particle 5% ~ 25%, hydrochloric acid 5% ~ 20%, bonding agent 5% ~ 15% and water 10% ~ 30%.
2. a kind of porous solid water desulfurization block of electrolytic aluminum smoke desulfurization according to claim 1, which is characterized in that described solid
Particle water is one of clinker, perlite or vermiculite or a variety of.
3. a kind of porous solid water desulfurization block of electrolytic aluminum smoke desulfurization according to claim 1, which is characterized in that described solid
The partial size of particle water is 1 ~ 6mm.
4. a kind of porous solid water desulfurization block of electrolytic aluminum smoke desulfurization according to claim 1, which is characterized in that the knot
Mixture is one or both of cement, solid water glass.
5. a kind of electrolytic aluminum smoke desulfurization preparation method of porous solid water desulfurization block, which comprises the following steps:
A: mass percent according to claim 1 weighs raw material, and magnesium hydroxide, bonding agent and water are put into blender,
30 ~ 100r/min stirs 1 ~ 10min；Then hydrochloric acid is added, 30 ~ 100r/min stirs 1 ~ 10min；Add solid water particle, 30 ~
100r/min stirs 1 ~ 5min and obtains mixed material；
B: being added to mixed material in step A in mold and be compacted, and prepares porous solid water desulfurization block, spare after drying.
6. a kind of preparation method of the electrolytic aluminum smoke desulfurization according to claim 5 with porous solid water desulfurization block, feature
It is, the solid water particle is one of clinker, perlite or vermiculite or a variety of.
7. according to a kind of preparation method of the porous solid water desulfurization block of electrolytic aluminum smoke desulfurization described in claim 5, feature exists
In the partial size of the solid water particle is 1 ~ 6mm.
8. a kind of preparation method of the porous solid water desulfurization block of electrolytic aluminum smoke desulfurization described in claim 5, which is characterized in that
The bonding agent is one or both of cement, solid water glass.
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|---|---|---|---|
| CN201910288840.5A CN109833768B (en) | 2019-04-11 | 2019-04-11 | Porous water-fixing desulfurization block for electrolytic aluminum flue gas desulfurization and preparation method thereof |
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| CN201910288840.5A CN109833768B (en) | 2019-04-11 | 2019-04-11 | Porous water-fixing desulfurization block for electrolytic aluminum flue gas desulfurization and preparation method thereof |
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| CN109833768B CN109833768B (en) | 2022-03-15 |
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| CN106422746A (en) * | 2016-10-13 | 2017-02-22 | 辽宁北环净化技术有限公司 | Filler for smoke desulfurization and denitrification and preparation method thereof |
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2019
- 2019-04-11 CN CN201910288840.5A patent/CN109833768B/en not_active Expired - Fee Related
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|---|---|---|---|---|
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