CN106276982A - Soda and sociation center novel environment friendly circulation technology system and method - Google Patents
Soda and sociation center novel environment friendly circulation technology system and method Download PDFInfo
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- CN106276982A CN106276982A CN201610907359.6A CN201610907359A CN106276982A CN 106276982 A CN106276982 A CN 106276982A CN 201610907359 A CN201610907359 A CN 201610907359A CN 106276982 A CN106276982 A CN 106276982A
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- mother solution
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01D—COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
- C01D7/00—Carbonates of sodium, potassium or alkali metals in general
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01C—AMMONIA; CYANOGEN; COMPOUNDS THEREOF
- C01C1/00—Ammonia; Compounds thereof
- C01C1/16—Halides of ammonium
- C01C1/164—Ammonium chloride
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Abstract
The present invention relates to a kind of soda and sociation center novel environment friendly circulation technology system and method, including II barrel of mother solution, ammonia absorber II, II barrel of ammonia mother solution, carbonators system, compressor, base output trough, filter, light ash calcining furnace, light grey cool alkali system, hydration machine, weight ash calcining furnace, cool alkali device, I barrel of mother solution, ammonia absorber I, heat exchanger, half II barrel of mother solution, aggregate groove, cool crystallizer, salting-out crystallizer, 2# weir flowmeter, saltout thickener, 1# weir flowmeter, cold analysis thickener, centrifugal filter ammonium machine, agriculture ammonium packaging system, dry ammonium stove, dry ammonium packaging system, native system is for " useless miscellaneous water " the repeats itself digestion completely produced；For waste gas qualified discharge after treatment；For AII mud waste residue, desulfurizing agent as boiler recycles after treatment.And native system production efficiency is high, the yield of ammonium chloride reaches 650,000 tons/year, and the yield of soda reaches 600,000 tons/year (wherein heavy soda ash is 400,000 tons/year).
Description
Technical field
The present invention relates to soda and sociation center soda manufacture system and method, be specifically related to a kind of soda and sociation center novel environment friendly
Circulation technology system and method.
Background technology
China's soda manufacture mainly uses " ammonia-soda process " and " union soda " two kinds of production technologies, on a small quantity with trona as raw material
Processing and fabricating.Due to connection alkali have that crude salt utilization rate is high, pollute less, low power consumption and other advantages, integrated soda production has obtained relatively in recent years
Fast development, China's connection alkali device aggregated capacity alreadys more than ammonia alkali.
Union soda soda manufacture uses Recycling Mother Solution mode, and alkali-making mother solution removes to produce ammonium chloride, and ammonium mother liquor recycle processed returns
Carry out alkaline so that the relatively ammonia-soda process of mother solution equivalent exceeds more than 50%, and carbonization take out that fluid solid content is low, free ammonia content is high,
Traditional technique and equipment, inefficient, it is difficult to produce the product of high-quality.The present invention is in traditional technique and equipment Foundations
On, make system circulation technology to improve and development.
Summary of the invention
In order to overcome drawbacks described above, the present invention provides a kind of soda and sociation center novel environment friendly circulation technology system, the most permissible
Solving the technical problem that existing integrated soda production blood circulation production efficiency is low, product quality is the highest, what is more important utilizes
Circulation technology thoroughly solves the environmental issue that original system faces.
The present invention is to solve that its technical problem be the technical scheme is that
A kind of soda and sociation center novel environment friendly circulation technology system, including II barrel of mother solution, mother solution II ammonia absorber, ammonia mother solution II
Bucket, carbonators system, compressor, base output trough, filter, light ash calcining furnace, light grey cool alkali system, hydration machine, weight ash calcining
Stove, cool alkali device, I barrel of mother solution, mother solution I ammonia absorber, heat exchanger, II barrel of half mother solution, aggregate groove, cool crystallizer, salting-out crystallizer,
2# weir flowmeter, thickener of saltouing, 1# weir flowmeter, cold analysis thickener, centrifugal filter ammonium machine, agriculture ammonium packaging system, dry ammonium
Stove, dry ammonium packaging system, described mother solution II ammonia absorber is connected with II barrel of mother solution and II barrel of ammonia mother solution respectively, described carbonators system
Be connected with described compressor, II barrel of ammonia mother solution and base output trough respectively, described filter respectively with base output trough, mother solution I bucket and
Light ash calcining furnace connects, and described light ash calcining furnace is connected with light grey cool alkali system and hydration machine respectively, and described heavy ash calcining furnace divides
Not being connected with hydration machine and cool alkali device, described mother solution I ammonia absorber is connected with mother solution I bucket and heat exchanger respectively, and described aggregate groove divides
Be not connected with heat exchanger and cool crystallizer, described cool crystallizer respectively with II barrel of half mother solution, salting-out crystallizer and 1# weir formula
Effusion meter connects, and described 2# weir flowmeter is connected with salting-out crystallizer and thickener of saltouing respectively, described in thickener of saltouing divide
Be not connected with II barrel of described mother solution and cool crystallizer, described cold analysis thickener respectively with 1# weir flowmeter and centrifugal filter ammonium machine
Connecting, described centrifugal filter ammonium machine is connected with agriculture ammonium packaging system and dry ammonium stove respectively, and described dry ammonium stove with described dry ammonium packaging is
System connects.
Further, also include ammonia mother solution II settling tank, described ammonia mother solution II settling tank respectively with mother solution II ammonia absorber and
The connection of II barrel of ammonia mother solution.
Further, described carbonators system includes cleaning carbonators, neutralizing bucket and alkaline carbonators.
Further, described filter is horizontal belt filter.
Further, described light ash calcining furnace includes head and star discharger.
Further, described cool crystallizer includes three axial-flow pumps, central canal and cool crystallizer crystalline substance bed；Described saltout
Crystallizer includes central canal, an axial-flow pump and salting-out crystallizer crystalline substance bed.
Further, described compressor includes that surge tank, compressor, cooler are gentle from device.
Further, also include that refrigeration system, described refrigeration system include refrigeration compressor set, the vaporation-type being sequentially connected with
Ammonia condenser, auxiliary surge tank, oil cooler and liquefied ammonia surge tank.
Further, described refrigeration system also includes emergency ammonia drainer.
Present invention also offers a kind of round-robin method, described method comprises the steps:
Step one: mother solution II enters mother solution II ammonia absorber and absorbs ammonia, prepares ammonification mother solution II, and ammonia mother solution II is at ammonia mother solution
Settling in II settling tank, through adding after dispersant, the impurity such as calcium ions and magnesium ions double salt therein, water-insoluble, silt forms AII
Mud, overflowing liquid enters II barrel of ammonia mother solution；
Step 2: ammonia mother solution II is pumped into carbonators through ammonia mother solution II, absorbs carbon dioxide therein in carbonators, raw
Become the suspension of sodium bicarbonate, go out alkali liquor by liquid level difference from being depressed into base output trough；Suspension in base output trough filters through horizontal belt
Machine system carries out solid-liquid separation, washing, and the weight in wet base alkali separated enters step 3；Filter mother solution and enter mother solution I bucket entrance step
Rapid six；
Step 3: weight in wet base alkali, through 3# weight alkali Leather Belt Conveyance, is respectively fed to light ash calcining furnace head through discharger, by
The heavy alkali conveying worm of head is sent in light ash calcining furnace, is heated by steam and is decomposed into light soda ash；Light soda ash is from forging
The head burning stove takes out, and is unloaded to 1# gently ash embedded scraper transporter by the star discharger of calcining furnace, then through light ash elevator, 2#
After 4# gently ash embedded scraper transporter delivered to by light ash embedded scraper transporter, a part is sent to hydration machine through powder device；Another part warp
Light ash alkali sieve and pulverizer screening, broken after deliver to after light grey cool alkali system processes to obtain light soda ash finished product；
Step 4: light soda ash carries out hydration reaction in hydration machine with water of constitution, generates monohydrated sodium carbonate, an aqueous carbonate
Sodium enters weight ash calcining furnace；
Step 5: the monohydrated sodium carbonate delivering to weight ash calcining furnace is sent in weight ash calcining furnace, indirectly heats with steam, removes
Moisture content, formed heavy soda ash, heavy soda ash is sent into cool alkali device carry out cool down thermokalite obtain heavy soda ash finished product；
Step 6: the mother solution I in mother solution I bucket delivers to mother solution I ammonia absorber, forms ammonia mother solution I and flows automatically to I barrel of ammonia mother solution,
Again by ammonia mother solution I pump through ammonia mother solution I cooler and mother liquor heat exchanger, after successively lowering the temperature with water and mother solution II heat exchange, enter set
Groove, with liquefied ammonia evaporation Outer Cooler circulation half mother solution II mix after together with enter cool crystallizer；
Step 7: remove salting-out crystallizer from half mother solution II of cool crystallizer top overflow, enters step 8；And take out
Magma, then after 1# weir flowmeter measures, from flowing into cold analysis thickener, enters step 9；
Step 8: salting-out crystallizer taking-up magma is after 2# weir flowmeter measures, from flowing into thickener of saltouing, its overflow
Mother solution II removes II barrel of mother solution, goes step one；The magma of stiff is pumped to cool crystallizer with predicting；
Step 9: the overflowing liquid of cold analysis thickener goes to filter ammonium liquid bucket, the magma after stiff removes centrifugal filter ammonium machine, separated after
Wet ammonium chloride, a part is fed directly to agriculture ammonium packaging system by 3# wet ammonia ribbon conveyer, and a part is by 1# wet ammonia belt
Conveyer is delivered to dry ammonium furnace rear and is delivered to dry ammonium packaging system and obtain finished product ammonium chloride.
The invention has the beneficial effects as follows:
1, the process of tail gas is filtered: utilize tower bottoms absorbing and filtering tail gas in filtering tail gas tower of light liquid distillation column
NH3 and CO2, tail gas qualified discharge.Filtering tail gas wash water goes synthetical recovery tower to process carbonization tail gas；
2, the process of carbonization tail gas: NH3 and CO2 in carbonization tail gas first absorbs through mother solution I, then with from filtering tail gas tower
Wash water absorbs, and finally by soft water absorption, the carbonization tail gas air that drains into up to standard after clean ammonia, the wash water after absorption is in other operations
Recycle；
3, the process of weight ash furnace exhaust gas: the tail gas that weight ash stove produces washs after ground caustic therein through heavy ash furnace scrubbing tower,
Tail gas qualified discharge, cleaning mixture uses as the feedstock circulation producing weight ash；
4, the process of dry ammonium tail gas: utilize the tower bottoms of light liquid distillation column to absorb NH3 and NH4Cl in dry ammonium tail gas tower
Granule, tail gas qualified discharge.Wash water after absorption goes other operations to recycle；
5, the process of AII mud: the AII mud liquid bottom settling tank, after filter press processes, filtrate is through disposing mother liquor pump
Send ammonia mother solution II settling tank back to.Deslagging field delivered to by ammonia II mud filter cake car, then is transported to boiler and uses as desulfurizing agent；
6, native system production efficiency is high, and the yield of ammonium chloride reaches 650,000 tons/year, and the yield of soda reaches 600,000 tons/year (wherein
Heavy soda ash is 400,000 tons/year).
Accompanying drawing explanation
Fig. 1 is that the equipment of circulation technology system in the present invention connects block diagram.
Detailed description of the invention
Below in conjunction with the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described,
Obviously, described embodiment is only a part of embodiment of the present invention rather than whole embodiments.Based in the present invention
Embodiment, the every other embodiment that those of ordinary skill in the art are obtained under not making creative work premise, all
Belong to the scope of protection of the invention.
As shown in Figure 1, a kind of soda and sociation center novel environment friendly circulation technology system, including II barrel of mother solution, mother solution II suction
Ammonia device, II barrel of ammonia mother solution, carbonators system, compressor, base output trough, filter, light ash calcining furnace, light grey cool alkali system, water
Conjunction machine, weight ash calcining furnace, cool alkali device, I barrel of mother solution, mother solution I ammonia absorber, heat exchanger, II barrel of half mother solution, aggregate groove, cold crystallization
Device, salting-out crystallizer, 2# weir flowmeter, thickener of saltouing, 1# weir flowmeter, cold analysis thickener, centrifugal filter ammonium machine, agriculture ammonium
Packaging system, dry ammonium stove, dry ammonium packaging system, described mother solution II ammonia absorber is connected with II barrel of mother solution and II barrel of ammonia mother solution respectively,
Described carbonators system is connected with described compressor, II barrel of ammonia mother solution and base output trough respectively, described filter respectively with go out
Alkali groove, mother solution I bucket and light ash calcining furnace connect, and described light ash calcining furnace is connected with light grey cool alkali system and hydration machine respectively, institute
Stating weight ash calcining furnace to be connected with hydration machine and cool alkali device respectively, described mother solution I ammonia absorber connects with mother solution I bucket and heat exchanger respectively
Connecing, described aggregate groove is connected with heat exchanger and cool crystallizer respectively, described cool crystallizer respectively with II barrel of half mother solution, saltout
Crystallizer and 1# weir flowmeter connect, and described 2# weir flowmeter is connected with salting-out crystallizer and thickener of saltouing respectively, institute
State thickener of saltouing to be connected with II barrel of described mother solution and cool crystallizer respectively, described cold analysis thickener respectively with 1# weir formula flow
Meter and centrifugal filter ammonium machine connect, and described centrifugal filter ammonium machine is connected with agriculture ammonium packaging system and dry ammonium stove respectively, described dry ammonium stove and
Described dry ammonium packaging system connects.The carbonization tail gas separated by filter in native system enters carbonization Reconstruction of End Gas Separator, and gas-liquid is divided
Separation liquid after from is from flowing into ammonia mother solution II bucket, and carbonization tail gas enters synthetical recovery tower mother solution washing section and washing section mother solution I
With the NH filtered in tail gas wash water washing absorption tail gas3And CO2, the carbonization tail gas after clean ammonia drains into air, hydration machine give vent to anger and
The furnace gas of weight ash calcining furnace enters heavy ash furnace scrubbing tower together, and the furnace gas after water washs is by exhaust blower warp let-off tail gas aerofluxus
Groove enters air, and the ammonia II mud that ammonia mother solution II settling tank is discharged is from press-in ammonia II mud bucket, and the useless mud sent here with sodium bicarbonate device is again
Ammonia II mud pressure filter is sent into through ammonia II dredge pump.Filtrate after filter pressing enters disposing mother liquor bucket, through disposing mother liquor pumped back ammonia mother solution
II settling tank；Deslagging field delivered to by ammonia II mud filter cake car, and native system also sets up wash water bucket, and each equipment wash water all can be sent into wherein,
With recycle-water resource.Therefore native system is for " useless miscellaneous water " the repeats itself digestion completely produced；Waste gas is reached after treatment
Mark discharge；For AII mud waste residue, desulfurizing agent as boiler recycles after treatment, and native system production efficiency is high, chlorination
The yield of ammonium reaches 650,000 tons/year, and the yield of soda reaches 600,000 tons/year (wherein heavy soda ash is 400,000 tons/year).
Wherein, also including ammonia mother solution II settling tank, described ammonia mother solution II settling tank is female with mother solution II ammonia absorber and ammonia respectively
Liquid II barrel connection.Ammonia mother solution II settles in ammonia mother solution II settling tank, after separating the impurity such as calcium therein, magnesium, insoluble matter, and overflow
Enter II barrel of ammonia mother solution, be pumped into the carbonators of each washing and cleaning operation through ammonia mother solution II.
Wherein, described carbonators system includes cleaning carbonators, neutralizing bucket and alkaline carbonators.Cleaning carbonators
In, stir for cleansing medium with nitrogen, utilize hot ammonia mother solution II to dissolve and clean scabbing of carbonators inwall.After having cleaned
Carbon ammonia mother solution II is from flowing into neutralization bucket, with carbon ammonia mother solution II pump in alkaline carbonators sent into by carbon ammonia mother solution II cooler, point
The synthesis gas do not sent here with compressor and furnace gas counter current contacting absorb carbon dioxide therein, generate the suspension of sodium bicarbonate
Liquid, goes out alkali liquor by liquid level difference from being depressed into base output trough.
Wherein, described filter is horizontal belt filter.Suspension in base output trough is through horizontal belt filter system
Carry out solid-liquid separation, washing.The weight in wet base alkali separated delivers to calcination process through 1# ribbon conveyer, filters mother solution and enters mother solution
I bucket, filters tail gas and send synthetical recovery tower.
Wherein, described light ash calcining furnace includes head and star discharger.The heavy alkali of alkali operation of conducting oneself with dignity is admitted to light ash
Calcining furnace head, is sent in light ash calcining furnace by the heavy alkali conveying worm of head, is heated by steam and is decomposed into light soda ash
(i.e. light ash).Light ash takes out from the head of calcining furnace, is drawn off by the star discharger of calcining furnace, and a part is sent to the grey system of weight
System；Another part is sent to light grey cool alkali system.
Wherein, described cool crystallizer includes three axial-flow pumps, central canal and cool crystallizer crystalline substance bed；Described salting-out crystallization
Device includes central canal, an axial-flow pump and salting-out crystallizer crystalline substance bed.The ammonia mother solution I that deadweight alkali operation is come flows automatically to I barrel of ammonia mother solution,
Again by ammonia mother solution I pump through ammonia mother solution I cooler and mother liquor heat exchanger, after successively lowering the temperature with water and mother solution II heat exchange, enter set
Groove, after mix with circulation half mother solution II of liquefied ammonia evaporation Outer Cooler together with enter the central canal of cool crystallizer, then under oneself
And Shangdi is by ammonium chloride crystalline substance bed, ammonium chloride degree of supersaturation fades away, and crystallization is gradually grown up.Often have three on set cool crystallizer
Platform axial-flow pump, open two so that half II circulation, in liquefied ammonia evaporation Outer Cooler, produce degree of supersaturation.Disappeared by crystallizer crystalline substance bed again
Lose degree of supersaturation, make the ammonium chloride crystals in brilliant bed grow up.Salting-out crystallizer is removed from the half II of the overflow of cool crystallizer top, and
The magma taken out is then after 1# weir flowmeter measures, from flowing into cold analysis thickener.Often set salting-out crystallizer is by an axial-flow pump
Making Recycling Mother Solution, from bottom to top by brilliant bed after mixing with the solid crude salt added in central canal, crude salt constantly dissolves, and nationality is same
Ionic effect produces ammonium chloride degree of supersaturation, and degree of supersaturation constantly disappears and makes the ammonium chloride crystals in brilliant bed gradually grow up simultaneously,
Salting-out crystallizer taking-up magma is after 2# weir flowmeter measures, and from flowing into thickener of saltouing, its overflow mother solution II removes mother solution II
Bucket.
Wherein, described compressor includes that surge tank, compressor, cooler are gentle from device.CO2Synthesis gas delays through synthesis gas
Rushing tank and enter synthesic gas compressor group entrance, deliver to syngas cooler after compression, then entrance synthesis gas is from device, through cold
But, separate after synthesis pneumatic transmission weight alkali operation for alkaline.The condensed water of each surge tank, cooler and separator collection is unified
Drain into recovery pond, recovered water pump carry, after oil strainer, deliver to wash water bucket, recycle.Also include freezing system
System, described refrigeration system includes the refrigeration compressor set being sequentially connected with, evaporative ammonia condenser, assists surge tank, oil cooler
With liquefied ammonia surge tank.From the gas ammonia of connection alkali device ammonium chloride operation, enter ammonia refrigerating compressor group, then enter after gas ammonia compression
Enter evaporative ammonia condenser, with cooling water heat exchange after the saturated liquefied ammonia of cooling enter auxiliary surge tank, and rear portion is from auxiliary
Enter the oil cooler of ammonia refrigerating compressor group bottom surge tank, under condensation temperature, be evaporated to gas ammonia divide through auxiliary surge tank again
From rear, again it is condensed before tank top gas ammonia out returns to ammonia condenser；The liquefied ammonia that another part overflows enters
Liquefied ammonia surge tank, the liquefied ammonia going out liquefied ammonia surge tank is sent to join alkali device ammonium chloride operation.In process of production, auxiliary surge tank and
Can accumulate oil bottom liquefied ammonia surge tank, need periodic exhaustion, the oil emitted enters oil catcher, for the ammonia in recovered oil,
Being passed through steam in oil catcher, be evaporated by ammonia, remaining oil is emitted in container.Described refrigeration system also includes promptly letting out ammonia
Device.Can process in time during for making accident, be provided with emergency ammonia drainer, during accident, liquefied ammonia enters emergency ammonia drainer, with production
Full factory accident pool is entered after the dilution of upper water.
The operating process of the present invention is:
Step one: mother solution II enters mother solution II ammonia absorber and absorbs ammonia, prepares ammonification mother solution II, and ammonia mother solution II is at ammonia mother solution
Settling in II settling tank, through adding after dispersant, the impurity such as calcium ions and magnesium ions double salt therein, water-insoluble, silt forms AII
Mud, overflowing liquid enters II barrel of ammonia mother solution；
Step 2: ammonia mother solution II is pumped into carbonators through ammonia mother solution II, absorbs carbon dioxide therein in carbonators, raw
Become the suspension of sodium bicarbonate, go out alkali liquor by liquid level difference from being depressed into base output trough；Suspension in base output trough filters through horizontal belt
Machine system carries out solid-liquid separation, washing, and the weight in wet base alkali separated enters step 3；Filter mother solution and enter mother solution I bucket entrance step
Rapid six；
Step 3: weight in wet base alkali, through 3# weight alkali Leather Belt Conveyance, is respectively fed to light ash calcining furnace head through discharger, by
The heavy alkali conveying worm of head is sent in light ash calcining furnace, is heated by steam and is decomposed into light soda ash；Light soda ash is from forging
The head burning stove takes out, and is unloaded to 1# gently ash embedded scraper transporter by the star discharger of calcining furnace, then through light ash elevator, 2#
After 4# gently ash embedded scraper transporter delivered to by light ash embedded scraper transporter, a part is sent to hydration machine through powder device；Another part warp
Light ash alkali sieve and pulverizer screening, broken after deliver to after light grey cool alkali system processes to obtain light soda ash finished product；
Step 4: light soda ash carries out hydration reaction in hydration machine with water of constitution, generates monohydrated sodium carbonate, an aqueous carbonate
Sodium enters weight ash calcining furnace；
Step 5: the monohydrated sodium carbonate delivering to weight ash calcining furnace is sent in weight ash calcining furnace, indirectly heats with steam, removes
Moisture content, formed heavy soda ash, heavy soda ash is sent into cool alkali device carry out cool down thermokalite obtain heavy soda ash finished product；
Step 6: the mother solution I in mother solution I bucket delivers to mother solution I ammonia absorber, forms ammonia mother solution I and flows automatically to I barrel of ammonia mother solution,
Again by ammonia mother solution I pump through ammonia mother solution I cooler and mother liquor heat exchanger, after successively lowering the temperature with water and mother solution II heat exchange, enter set
Groove, with liquefied ammonia evaporation Outer Cooler circulation half mother solution II mix after together with enter cool crystallizer；
Step 7: remove salting-out crystallizer from half mother solution II of cool crystallizer top overflow, enters step 8；And take out
Magma, then after 1# weir flowmeter measures, from flowing into cold analysis thickener, enters step 9；
Step 8: salting-out crystallizer taking-up magma is after 2# weir flowmeter measures, from flowing into thickener of saltouing, its overflow
Mother solution II removes II barrel of mother solution, goes step one；The magma of stiff is pumped to cool crystallizer with predicting；
Step 9: the overflowing liquid of cold analysis thickener goes to filter ammonium liquid bucket, the magma after stiff removes centrifugal filter ammonium machine, separated after
Wet ammonium chloride, a part is fed directly to agriculture ammonium packaging system by 3# wet ammonia ribbon conveyer, and a part is by 1# wet ammonia belt
Conveyer is delivered to dry ammonium furnace rear and is delivered to dry ammonium packaging system and obtain finished product ammonium chloride.
It should be pointed out that, for the person of ordinary skill of the art, without departing from the inventive concept of the premise, also may be used
To make some deformation and improvement, these broadly fall into protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be with
Claims are as the criterion.
Claims (10)
1. a soda and sociation center novel environment friendly circulation technology system, it is characterised in that: include that II barrel of mother solution, mother solution II inhale ammonia
Device, II barrel of ammonia mother solution, carbonators system, compressor, base output trough, filter, light ash calcining furnace, light grey cool alkali system, hydration
Machine, weight ash calcining furnace, cool alkali device, I barrel of mother solution, mother solution I ammonia absorber, heat exchanger, II barrel of half mother solution, aggregate groove, cool crystallizer,
Salting-out crystallizer, 2# weir flowmeter, thickener of saltouing, 1# weir flowmeter, cold analysis thickener, centrifugal filter ammonium machine, agriculture ammonium bag
Dress system, dry ammonium stove, dry ammonium packaging system, described mother solution II ammonia absorber is connected with II barrel of mother solution and II barrel of ammonia mother solution respectively, institute
State carbonators system to be connected with described compressor, II barrel of ammonia mother solution and base output trough respectively, described filter respectively with go out alkali
Groove, mother solution I bucket and light ash calcining furnace connect, and described light ash calcining furnace is connected with light grey cool alkali system and hydration machine respectively, described
Weight ash calcining furnace is connected with hydration machine and cool alkali device respectively, and described mother solution I ammonia absorber is connected with mother solution I bucket and heat exchanger respectively,
Described aggregate groove is connected with heat exchanger and cool crystallizer respectively, described cool crystallizer respectively with II barrel of half mother solution, knot of saltouing
Brilliant device and 1# weir flowmeter connect, and described 2# weir flowmeter is connected with salting-out crystallizer and thickener of saltouing respectively, described
Thickener of saltouing is connected with II barrel of described mother solution and cool crystallizer respectively, described cold analysis thickener respectively with 1# weir flowmeter
Connecting with centrifugal filter ammonium machine, described centrifugal filter ammonium machine is connected with agriculture ammonium packaging system and dry ammonium stove respectively, described dry ammonium stove and institute
State dry ammonium packaging system to connect.
Soda and sociation center novel environment friendly circulation technology system the most according to claim 1, it is characterised in that: also include that ammonia is female
Liquid II settling tank, described ammonia mother solution II settling tank is connected with mother solution II ammonia absorber and II barrel of ammonia mother solution respectively.
Soda and sociation center novel environment friendly circulation technology system the most according to claim 1, it is characterised in that: described carbonators
System includes cleaning carbonators, neutralizing bucket and alkaline carbonators.
Soda and sociation center novel environment friendly circulation technology system the most according to claim 1, it is characterised in that: described filter
For horizontal belt filter.
Soda and sociation center novel environment friendly circulation technology system the most according to claim 1, it is characterised in that: described light ash is forged
Burn stove and include head and star discharger.
Soda and sociation center novel environment friendly circulation technology system the most according to claim 1, it is characterised in that: described cold analysis is tied
Brilliant device includes three axial-flow pumps, central canal and cool crystallizer crystalline substance bed；Described salting-out crystallizer includes central canal, an axial-flow pump
With salting-out crystallizer crystalline substance bed.
Soda and sociation center novel environment friendly circulation technology system the most according to claim 1, it is characterised in that: described compression dress
Put and include that surge tank, compressor, cooler are gentle from device.
Soda and sociation center novel environment friendly circulation technology system the most according to claim 1, it is characterised in that: also include freezing
System, described refrigeration system includes the refrigeration compressor set being sequentially connected with, evaporative ammonia condenser, assists surge tank, oil cooling
Device and liquefied ammonia surge tank.
Soda and sociation center novel environment friendly circulation technology system the most according to claim 8, it is characterised in that: described freezing system
System also includes emergency ammonia drainer.
10. according to the round-robin method of the soda and sociation center novel environment friendly circulation technology system according to any one of claim 1-9,
It is characterized in that: described method comprises the steps:
Step one: mother solution II enters mother solution II ammonia absorber and absorbs ammonia, prepares ammonification mother solution II, and ammonia mother solution II is clear at ammonia mother solution II
Settling in clear bucket, after adding dispersant, the impurity such as calcium ions and magnesium ions double salt therein, water-insoluble, silt forms AII mud, overflows
Flow liquid enters II barrel of ammonia mother solution；
Step 2: ammonia mother solution II is pumped into carbonators through ammonia mother solution II, absorbs carbon dioxide therein in carbonators, generates carbon
The suspension of acid hydrogen sodium, goes out alkali liquor by liquid level difference from being depressed into base output trough；Suspension in base output trough is through horizontal belt filter system
System carries out solid-liquid separation, washing, and the weight in wet base alkali separated enters step 3；Filter mother solution and enter mother solution I bucket entrance step 6；
Step 3: weight in wet base alkali, through 3# weight alkali Leather Belt Conveyance, is respectively fed to light ash calcining furnace head through discharger, by head
Heavy alkali conveying worm send in light ash calcining furnace, be heated by steam and be decomposed into light soda ash；Light soda ash is from calcining furnace
Head take out, unloaded to 1# gently ash embedded scraper transporter by the star discharger of calcining furnace, more grey through light ash elevator, 2#
After 4# gently ash embedded scraper transporter delivered to by embedded scraper transporter, a part is sent to hydration machine through powder device；Another part is through light ash
Alkali sieve and pulverizer screening, broken after deliver to after light grey cool alkali system processes to obtain light soda ash finished product；
Step 4: light soda ash carries out hydration reaction in hydration machine with water of constitution, generates monohydrated sodium carbonate, and monohydrated sodium carbonate enters
Enter weight ash calcining furnace；
Step 5: the monohydrated sodium carbonate delivering to weight ash calcining furnace is sent in weight ash calcining furnace, indirectly heats with steam, removes water
Part, formed heavy soda ash, heavy soda ash is sent into cool alkali device carry out cool down thermokalite obtain heavy soda ash finished product；
Step 6: the mother solution I in mother solution I bucket delivers to mother solution I ammonia absorber, forms ammonia mother solution I and flows automatically to I barrel of ammonia mother solution, then by
Ammonia mother solution I pump, through ammonia mother solution I cooler and mother liquor heat exchanger, after successively lowering the temperature with water and mother solution II heat exchange, enters aggregate groove, with
Cool crystallizer is entered together after circulation half mother solution II mixing of liquefied ammonia evaporation Outer Cooler；
Step 7: remove salting-out crystallizer from half mother solution II of cool crystallizer top overflow, enters step 8；And the magma taken out
Then after 1# weir flowmeter measures, from flowing into cold analysis thickener, enter step 9；
Step 8: salting-out crystallizer taking-up magma is after 2# weir flowmeter measures, from flowing into thickener of saltouing, its overflow mother solution
II removes II barrel of mother solution, goes step one；The magma of stiff is pumped to cool crystallizer with predicting；
Step 9: the overflowing liquid of cold analysis thickener goes to filter ammonium liquid bucket, the magma after stiff removes centrifugal filter ammonium machine, separated after wet
Ammonium chloride, a part is fed directly to agriculture ammonium packaging system by 3# wet ammonia ribbon conveyer, and a part is by 1# wet ammonia belt conveying
Machine is delivered to dry ammonium furnace rear and is delivered to dry ammonium packaging system and obtain finished product ammonium chloride.
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| CN110563067A (en) * | 2019-09-23 | 2019-12-13 | 深圳市瑞升华科技股份有限公司 | Energy-saving ammonium chloride wastewater freezing concentration crystallization system and process thereof |
| CN115318808A (en) * | 2022-07-13 | 2022-11-11 | 中化(浙江)膜产业发展有限公司 | Waste recycling coupling process system and method based on membrane technology |
| CN117865183A (en) * | 2024-03-08 | 2024-04-12 | 山东海天生物化工有限公司 | Clean production process for improving crystallinity granularity of re-ash |
| CN117865183B (en) * | 2024-03-08 | 2024-07-09 | 山东海天生物化工有限公司 | Clean production process for improving crystallinity granularity of re-ash |
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| CN115318808A (en) * | 2022-07-13 | 2022-11-11 | 中化(浙江)膜产业发展有限公司 | Waste recycling coupling process system and method based on membrane technology |
| CN117865183A (en) * | 2024-03-08 | 2024-04-12 | 山东海天生物化工有限公司 | Clean production process for improving crystallinity granularity of re-ash |
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