CN103525560B - A method of recovering lanolin and sylvites from wool-washing waste water and sludge - Google Patents
A method of recovering lanolin and sylvites from wool-washing waste water and sludge Download PDFInfo
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- CN103525560B CN103525560B CN201310468111.0A CN201310468111A CN103525560B CN 103525560 B CN103525560 B CN 103525560B CN 201310468111 A CN201310468111 A CN 201310468111A CN 103525560 B CN103525560 B CN 103525560B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
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Abstract
The invention discloses a method of recovering lanolin and sylvites from wool-washing waste water and sludge. The method includes recovering the lanolin from close-loop treatment concrete of neutral wool-washing waste water; preparing a potassium fertilizer from the neutral wool-washing waste water and sludge close-loop lanolin-recovered waste residue soil; and recovering sheep sweat and the sylvites from the close-loop neutral wool-washing waste water through reverse osmosis treatment. The method is advantageous in that: (1) over 95% of the wool-washing waste water, the sludge, the lanolin and a emulsified and saponified mixture are recovered and reutilized, thus reducing COD discharge largely; (2) by adopting a neutral wool-washing close-loop circulation and after ultrafiltration, only 2.5 ton of clear water is used to wash 1 ton of wool, thus reducing or eliminating waste water discharge, significantly reducing wool-washing water consumption and reducing the production cost; and (3) by adopting the neutral wool-washing close-loop circulation and after ultrafiltration, potassium, salts, alkalis and solvents in the permeate are recovered, thus reducing discharge of the potassium and sodium salt washing solution, reducing the production cost, and alleviating pollution to the ecological environment.
Description
Technical field
The present invention relates to the comprehensive utilization of a kind of wool washing waste water, mud, from wool washing waste water, mud, specifically reclaim lanolin, reclaim sylvite, and prepare the method for potash fertilizer with sylvite.
Background technology
The method of current domestic washout woolsorter skill, the overwhelming majority is the scouring of wool of soap alkali traditional way.Wash waste water that wool gets off, mud is a kind of high density, high filthy chemical combination mixture.Its composition part is very complicated, and primary pollution source is lanolin, and in waste water, content can up to 5-20g/L.COD value is 4 × 10
4-6 × 10
4mg/L, reaches as high as 8 × 10
4mg/L, exceeds 4.5 times according to its COD pollution of lanolin characteristic.Particularly lanolin, acid, by the waste water after alkali, potassium, emulsifying salt saponification and mud with negative charge, adsorptive power by force, highly muddy, suspended state not free settling in addition.These organic waste waters, mud, discharge if direct, drop into rivers, severe contamination is destroyed ecotope.The more important thing is that a large amount of, high added value, useful resources wastes.Lanolin is again the important source material of industry, medicine, makeup, military enterprise.From waste water from washing wool, reclaim lanolin, from waste residue, mud, reclaim lanolin, mud produces composite potassium fertilizer, is agricultural produce, increases income the raw material be of great value.
One, the domestic and international treatment process to wool washing waste water is a lot of at present.As the methods such as method, ultrafiltration centrifuging, old-fashioned mechanical centrifugal are split in biochemical process, By Bubble-floating Method, flocculence, acid, the waste water from washing wool after process, can only by unoxidized lanolin through a small amount of lanolin of centrifugal recovery.And the lanolin of emulsification, saponification and potassium, sodium, salt are not reclaimed, cause severe environmental pollution with discharge of wastewater.
Two, the domestic and international method for lanolin resource recycling is existing at present reports; Having Zelanian youth hereby little groove wool washing machine, is adopt whizzer to reclaim degras; Australia LQ-f10 wool washing machine Waste Water Treatment is that the precipitator method reclaim degras; United States Patent (USP) adopts closed loop scouring of wool centrifugal ultrafiltration method to reclaim degras; What Qinhua Univ., Beijing's purple light and Changping County, Beijing two woollen mill developed jointly is adopt centrifugal extraction method to reclaim degras; " waste water from washing wool acid degradation method " that new bridge chemical plant, Shanghai and Shanghai topmaker develop jointly utilizes extraction process to reclaim rough lanolin.
In sum, the waste water that domestic washout wool gets off is all adopt waste water from washing wool to increase temperature whizzer to reclaim unoxidized lanolin substantially, recovery rate is very low, can only 15-20% be reclaimed, and the discharge of wastewater of remainder does not reach national standard, continue contaminate environment, also waste a large amount of precious resources.
Summary of the invention
Object of the present invention, is to provide a kind of method reclaiming lanolin and sylvite from wool washing waste water and mud, and the lanolin in wool washing waste water and mud, wool perspiration and sylvite can reclaim by this processing method, and the sylvite of recovery is made potash fertilizer.
Primary pollution source material in waste water from washing wool is processed recovery by the present invention respectively, as follows:
1, lanolin is wool secretory product on chimera, and on average about about 15-18%, its characteristic contamination level is equivalent to 2.4 times of COD; Owing to adding alkali in scouring of wool process, lotion makes lanoceric acid 35-40% define emulsification, saponified.And adopting positive charge vitriol by the lanoceric acid converted back lanolin of emulsification, saponification, recovery rate is at more than 85-90%; Namely reduce the discharge of a large amount of COD, make again COD content in waste water from washing wool only at about 30-40mg/L, discharge and reach national standard reference.
2, washing wool preliminary working is after shear gets off, state's hair is containing assorted about the 35-50% of soil, outer hair is containing assorted about the 20-30% of soil, wool-opening beats a large amount of sludge sand that soil is mixed and precipitated in scouring bowl scouring of wool process, first through pre-treatment, waste residue soil again after extracting lanolin can be processed into composite potassium fertilizer, and quality can reach national potash fertilizer standard.
3, wool perspiration is the sylvite that on chimera, suint line is discharged, containing more than 5-8% in wool.Sylvite is soluble in wool washing waste water, and we adopt membrane molecule filter plant, isolates pure water reuse drift scoured wool.Contained wool perspiration reuse scouring of wool or recovery sylvite in concentrated solution.Scoured wool quality reaches national ministerial standard.
The technical scheme adopted is:
From wool washing waste water and mud, reclaim a method for lanolin and sylvite, comprising:
Neutrality washes wool closed loop wastewater treatment concentrated solution recovery lanolin (see accompanying drawing 1), neutral wool washing waste water and mud closed loop recovery lanolin waste residue soil composite potassium fertilizer processed (see Fig. 2) and neutral wool washing waste water closed loop reclaims wool perspiration and sylvite through reverse-osmosis treated, it is characterized in that:
Described neutrality is washed wool closed loop wastewater treatment concentrated solution and is reclaimed lanolin, comprises following processing step:
1, will multiple scouring bowl series connection of wool machine be washed, and form closed cycle adverse current and wash easy care.
2, carry out pre-treatment to wool to be washed: wool-opening is beaten soil, undercoat, weeds are removed, useless earth is for subsequent use.
3, pretreated wool is put into the scouring bowl of five groove wool washing machines, carry out closed-circulation type flushing by water.Wash in wool process and adopt neutral salt: Industrial Salt (sodium-chlor, sodium sulfate), add the scouring of wool of tensio-active agent (lotion) ratio blend amount and reach degreasing, scoured wool is up to state standards.
4, closed-circulation type rinses to comprise washing the flushing of wool machine closed loop partial circulating and washing the systemic circulation of wool machine closed loop and rinses.
(1), washing the purging method of wool machine closed loop partial circulating is: five grooves of combining five groove wool washing machines form self closed loop partial circulating, adopt adverse current scouring of wool, make the 5th groove rinse water return the 4th groove; The water of the 4th groove gives the first groove, the second groove, and the water of the second groove and the complete wool of the 3rd trough washery, squeeze into wastewater sludge pond through pump or send into precipitation process in cyclone sediment tank.
(2), washing wool machine closed loop systemic circulation purging method is:
1., the wool washing waste water pump of cyclone sediment tank is squeezed in pre-flock circulation tank, wool washing waste water after pre-flock circulation tank pre-flock pumps in ultra-fine filter and again filters, small molecules liquid through filter membrane is sent into small molecules clean water tank, after the process of small molecules clean water tank, liquid sends the first groove, the second groove back to for washing wool, and unnecessary water sends to recovery sylvite.
2. macromole concentration tank sent into by the macromole concentrated solution, after ultrafiltration, by pump input extraction conversion tank, pumps in ether grease tank again, drive A pump, deliver in evaporating pot, send water cooler through evaporation after the extraction of extraction conversion tank, cooling recycling design sherwood oil.And macromole concentrated solution is again after evaporating pot evaporation, make the degras finished product containing 0.5% moisture.
Open ether grease tank B pump, material in ether grease tank is pumped in fining pot, add refining agent Virahol, after regulating iso-electric point (PH) value, heat to 65-70 DEG C of stirring 30 minutes, Separation and Recovery Virahol.After refining, extracting solution is with being pumped into rinse tank, the hydrogen oxide (hydrogen peroxide) that rinse tank temperature adds 35% of material under 55 DEG C of conditions stirs, oxidizing reaction 10-12 hour, precipitation releases water and impurity, evaporating with being pumped in evaporating pot, making the refined wool fat containing 0.5% moisture.Again with being pumped into molecular distillation.System is under high vacuum, high temperature, and small molecules is removed, and makes pure smart lanolin finished product.
Described from neutral wool washing waste water, mud soil closed loop recovery lanolin waste residue potash fertilizer, comprise following technical process:
(1), wool machine mud is washed in collection:
1., wool washing machine first start be by wool through feeding hair curtain, deliver to shredding dust shaker, collect and laid the soil come and mix, containing lanolin 5-8% during soil is assorted.
2., wool washing machine first, second, and third groove is in scouring of wool process, wash the mud got off, be discharged in 2# sludge water great Chi when clear car, after precipitation adds the process of 3# flocculation agent Tai-Ace S 150, send into the centrifugation of horizontal desilt machine and go out mud and water, isolated mud delivers to earth mummification preprocessing field, and wool groove is washed in isolated water loopback.Wherein earth is containing lanolin 10-15%.
(2), by mud that step (1) obtains, shredding removal of impurities soil, mud after waste water flocculating all focuses on earth mummification preprocessing field, pretreated for mummification mud is delivered to 2# extracter, add 6# solvent (add-on 1:1-1.5 sherwood oil), lanolin ether fat liquid is invaded out in extraction, and pump is to 3# circulation ether grease tank, to 4# thin film evaporation tank, evaporate solvent at vacuum tightness 0.07-0.10Pa.Through 5# vacuum cooler recycling design, and self-pressure passes back in 6# solvent tanker.And entered bucket packaging by the lanolin finished product that 4# evaporating pot is evaporated.
5, discharge waste residue soil by 2# extracter, be transported to 6# waste residue whizzer, after drying, be transported to 7# co-grinding machine, then be transported to 8# nitrogen phosphorus mixing machine, add nitrogenous fertilizer and phosphate fertilizer in setting ratio, after mixing, then rise to 9# rotary disc feeder place, carry out metering pack, sealing, to obtain final product.
Describedly reclaim wool perspiration and sylvite from neutral wool washing waste water closed loop through reverse osmosis, comprise the steps:
(1), after associating wool washing machine adopts the large and small circulating treating system of neutral closed loop, systemic circulation 2-3# ultra-fine filter, delivers in 2-5# clean water tank through clear water, reuse scouring of wool.And unnecessary water, through 1# fine filting machine reverse osmosis machine through pure water, do rinse water through 2# clean water tank with being pumped into wool washing machine 4,5 groove.Through the macromole water that 1# fine filting machine reverse osmosis machine is concentrated, be pumped into wool washing machine 1,2,3 groove after concentrated by 3# concentration tank, go scouring of wool (suint scouring) with wool perspiration sylvite.
(2), sylvite (wool perspiration) process system flow process is reclaimed:
The macromole water that 1# essence filter reverse osmosis machine is concentrated, after 3# is concentrated, filters through being pumped in 4# filter.Be separated with being pumped into 5# electrodialytic membranes after completing, then isolate xln (1) through 6# whizzer, dry to 7# drying machine, packaging final prod salt of wormwood; Isolate mother liquor (2) pumping wool washing machine reuse scouring of wool.
Advantage of the present invention:
1) mixture more than 95% of wool washing waste water, mud, lanolin and emulsification saponification all processes recycling, greatly reduces the discharge of COD.If when waste water from washing wool needs to discharge, the water after process meets or exceeds national GB28937-2012 " woolen industry pollution discharge standard ".
2) adopt neutrality to wash wool closed cycle after ultrafiltration, wash 1 ton of outer hair and only used 2.5 tons of clear water, wash state's hair and only use 4.5 tons of clear water; Fully recovering after wool washing waste water process.Minimizing or not waste discharge.Be apparent that wool water loss is washed in minimizing especially, reduce production cost.
3) implement neutrality and wash wool closed cycle after ultrafiltration, in permeate, reclaim potassium, salt, alkali, lotion.Reduce the discharge of potassium, sodium salt lotion, and recycle, reduce production cost, alleviate pollution to ecotope.
4) implement neutrality and wash the permeate of wool closed cycle after ultrafiltration membrane treatment, the scouring of wool of band thermal energy supply wool washing machine.Realization makes full use of waste heat, reduces energy consumption, reduces production cost.
Accompanying drawing explanation
Fig. 1 is that neutrality washes wool closed loop wastewater treatment concentrated solution recovery lanolin process flow sheet.
Fig. 2 is neutral wool washing waste water, mud soil closed loop reclaims lanolin waste residue composite potassium fertilizer process flow sheet.
Fig. 3 is that neutral wool washing waste water closed loop reclaims sylvite (wool perspiration) wool-cleaning technology schema through reverse-osmosis treated.
Embodiment
From wool washing waste water and mud, reclaim a method for lanolin and sylvite, comprising:
Neutrality washes wool closed loop wastewater treatment concentrated solution recovery lanolin (see accompanying drawing 1), neutral wool washing waste water and mud closed loop recovery lanolin waste residue composite potassium fertilizer (see Fig. 2) and neutral wool washing waste water closed loop reclaims wool perspiration and sylvite through reverse-osmosis treated, it is characterized in that:
Described neutrality is washed wool closed loop wastewater treatment concentrated solution and is reclaimed lanolin, comprises following processing step:
1, washing the series connection of wool groove by washing the multiple of wool machine, forming closed cycle back flushing easy care.
2, carry out pre-treatment to wool to be washed: wool-opening is beaten soil, undercoat, weeds are removed, waste residue soil is for subsequent use.
3, pretreated wool is put into the scouring bowl of five groove wool washing machines, carry out closed-circulation type flushing by water.Wash in wool process and adopt neutral salt: Industrial Salt (sodium-chlor, sodium sulfate), add the scouring of wool of tensio-active agent (lotion) ratio blend amount and reach degreasing, scoured wool is up to state standards.
4, closed-circulation type rinses to comprise washing the flushing of wool machine closed loop partial circulating and washing the systemic circulation of wool machine closed loop and rinses.
(1), washing the purging method of wool machine closed loop partial circulating is: five grooves of combining five groove wool washing machines form self closed loop partial circulating, adopt adverse current scouring of wool, make the complete water of the 5th groove rinsing return the 4th groove; The water of the 4th groove gives the first groove, the second groove; And the water of the second groove and the complete wool of the 3rd trough washery is squeezed into wastewater sludge pond through pump or is sent into precipitation process in cyclone sediment tank.
(2), washing wool machine closed loop systemic circulation purging method is:
1., the wool washing waste water pump of cyclone sediment tank is squeezed in pre-flock circulation tank, wool washing waste water after pre-flock circulation tank pre-flock, pump in ultra-fine filter and again filter, small molecules liquid through filter membrane is sent into small molecules clean water tank, after the process of small molecules clean water tank, liquid sends the first groove, the second groove back to for washing wool, and unnecessary water sends to recovery sylvite.
2. macromole concentration tank sent into by the macromole concentrated solution, after ultrafiltration, by pump input extraction conversion tank, pumps in ether grease tank again, drive A pump, deliver in evaporating pot, send water cooler through evaporation after the extraction of extraction conversion tank, cooling recycling design sherwood oil.And macromole concentrated solution is again after evaporating pot evaporation, make the degras finished product containing 0.5% moisture.
Open ether grease tank B pump, material in ether grease tank is pumped in fining pot, add refining agent Virahol, after regulating iso-electric point (PH) value, heat to 65-70 DEG C, stir 30 minutes, Separation and Recovery Virahol.Extracting solution after refining is with being pumped into rinse tank, the hydrogen oxide (hydrogen peroxide) that rinse tank temperature adds 35% of material under 55 DEG C of conditions stirs, oxidizing reaction 10-12 hour precipitation, release water and impurity, evaporate with being pumped in evaporating pot, make the smart lanolin containing 0.5% moisture, with being pumped into molecular distillation.System is under high vacuum, high temperature, and small molecules is removed, and makes pure smart lanolin product.
Described from neutral wool washing waste water, mud soil closed loop recovery lanolin waste residue potash fertilizer, comprise following technical process:
(1), wool machine mud is washed in collection:
1., wool washing machine first start be by wool through feeding hair curtain, deliver to shredding dust shaker, collect and laid the soil come and mix, containing lanolin 5-8% during soil is assorted.
2., wool washing machine first, second, and third groove is in scouring of wool process, wash the mud got off, be discharged in 2# sludge water great Chi when clear car, after precipitation adds the process of 3# flocculation agent, send into the centrifugation of horizontal desilt machine and go out mud and water, isolated mud delivers to earth mummification preprocessing field, and wool groove is washed in isolated water loopback.Wherein earth is containing lanolin 10-15%.
(2), by the mud of above-mentioned acquisition, shredding removal of impurities soil, mud after waste water flocculating all focuses on earth mummification preprocessing field, pretreated for mummification mud is delivered to 2# extracter, add 6# solvent (add-on 1:1-1.5 sherwood oil), lanolin ether fat liquid is invaded out in extraction, and pump is to 3# circulation ether grease tank, to 4 film # evaporating pots, evaporate solvent at vacuum tightness 0.07-0.10Pa.Through 5# vacuum cooler recycling design, and self-pressure passes back in 6# solvent tanker.And entered bucket packaging by the lanolin finished product that 4# evaporating pot is evaporated.
5, discharge waste residue soil by 2# extracter, be transported to 6# whizzer, after drying, be transported to 7# co-grinding machine, then be transported to 8# nitrogen phosphorus mixing machine, add nitrogenous fertilizer and phosphate fertilizer in setting ratio, after mixing, then rise to 9# rotary disc feeder place, carry out metering pack, sealing, to obtain final product.
Describedly reclaim wool perspiration and sylvite from neutral wool washing waste water closed loop through reverse osmosis, comprise the steps:
(1), after associating wool washing machine adopts the large and small circulating treating system of neutral closed loop, systemic circulation 2-3# ultra-fine filter, delivers in 2-5# clean water tank through clear water, reuse scouring of wool.And unnecessary water, through 1# fine filting machine reverse osmosis machine through pure water, do rinse water through 2# clean water tank with being pumped into wool washing machine 4,5 groove.Through the macromole water that 1# fine filting machine reverse osmosis machine is concentrated, be pumped into wool washing machine 1,2,3 groove after concentrated by 3# concentration tank, go scouring of wool (suint scouring) with wool perspiration sylvite.
(2), sylvite (wool perspiration) process system flow process is reclaimed:
The macromole water that 1# fine filting machine reverse osmosis machine is concentrated, after 3# concentration tank is concentrated, filters through being pumped in 4# filter.Be separated with being pumped into 5# electrodialytic membranes after completing, then isolate xln (1) through 6# whizzer, dry to 7# drying machine, packaging final prod salt of wormwood; Isolate mother liquor (2) pumping wool washing machine reuse scouring of wool.
Claims (1)
1. from wool washing waste water and mud, reclaim a method for lanolin and sylvite, comprising:
Neutrality washes the recovery of wool closed loop wastewater treatment concentrated solution lanolin, neutral wool washing waste water and mud closed loop recovery lanolin waste residue soil composite potassium fertilizer processed and neutral wool washing waste water closed loop reclaims wool perspiration and sylvite through reverse-osmosis treated, it is characterized in that:
Described neutrality is washed wool closed loop wastewater treatment concentrated solution and is reclaimed lanolin, comprises following processing step:
(1), will multiple scouring bowl series connection of wool machine be washed, and form closed cycle adverse current and wash easy care;
(2), to wool to be washed carry out pre-treatment: wool-opening is beaten soil, undercoat, weeds are removed, useless earth is for subsequent use;
(3), pretreated wool is put into the scouring bowl of five groove wool washing machines, closed-circulation type flushing is carried out by water, wash in wool process and adopt neutral salt: Industrial Salt, sodium-chlor or sodium sulfate, add the scouring of wool of Surfactant Ratio blend amount and reach degreasing, scoured wool is up to state standards;
(4), closed-circulation type rinses to comprise washing the flushing of wool machine closed loop partial circulating and washing the systemic circulation of wool machine closed loop and rinses;
1), washing the purging method of wool machine closed loop partial circulating is: five grooves of combining five groove wool washing machines form self closed loop partial circulating, adopt adverse current scouring of wool, make the 5th groove rinse water return the 4th groove; The water of the 4th groove gives the first groove, the second groove, and the water of the second groove and the complete wool of the 3rd trough washery, squeeze into wastewater sludge pond through pump or send into precipitation process in cyclone sediment tank;
2), washing wool machine closed loop systemic circulation purging method is:
1., the wool washing waste water pump of cyclone sediment tank is squeezed in pre-flock circulation tank, wool washing waste water after pre-flock circulation tank pre-flock pumps in ultra-fine filter and again filters, small molecules liquid through filter membrane is sent into small molecules clean water tank, after the process of small molecules clean water tank, liquid sends the first groove, the second groove back to for washing wool, and unnecessary water sends to recovery sylvite;
2. macromole concentration tank sent into by the macromole concentrated solution, after ultrafiltration, by pump input extraction conversion tank, pump into again in ether grease tank after the extraction of extraction conversion tank, drive A pump, deliver in evaporating pot, send water cooler through evaporation, cooling recycling design sherwood oil, and macromole concentrated solution is again after evaporating pot evaporation, make the degras finished product containing 0.5% moisture;
Open ether grease tank B pump, material in ether grease tank is pumped in fining pot, add refining agent Virahol, after regulating isoelectric pH value, heat to 65-70 DEG C of stirring 30 minutes, Separation and Recovery Virahol; After refining, extracting solution is with being pumped into rinse tank, and the hydrogen oxide that rinse tank temperature adds 35% of material under 55 DEG C of conditions stirs, oxidizing reaction 10-12 hour, precipitation releases water and impurity, evaporating, making the refined wool fat containing 0.5% moisture with being pumped in evaporating pot; Again with being pumped into molecular distillation; System is under high vacuum, high temperature, and small molecules is removed, and makes pure smart lanolin finished product;
Described neutral wool washing waste water and mud closed loop reclaim lanolin waste residue soil composite potassium fertilizer processed, comprise following technical process:
(1), wool machine mud is washed in collection:
1., wool washing machine first start be by wool through feeding hair curtain, deliver to shredding dust shaker, collect and laid the soil come and mix, containing lanolin 5-8% during soil is assorted;
2., wool washing machine first, second, and third groove is in scouring of wool process, wash the mud got off, be discharged in 2# sludge water great Chi when clear car, after precipitation adds the process of flocculation agent Tai-Ace S 150, send into the centrifugation of horizontal desilt machine and go out mud and water, isolated mud delivers to earth mummification preprocessing field, and wool groove is washed in isolated water loopback, and wherein earth is containing lanolin 10-15%;
(2), by mud that step (1) obtains, shredding removal of impurities soil, mud after waste water flocculating all focuses on earth mummification preprocessing field, pretreated for mummification mud is delivered to 2# extracter, add 6# solvent sherwood oil, sherwood oil add-on is 1:1-1.5, lanolin ether fat liquid is leached in extraction, pump is to 3# circulation ether grease tank, to 4# thin film evaporation tank, evaporate solvent at vacuum tightness 0.07-0.10Pa, through 5# vacuum cooler recycling design, and self-pressure passes back in 6# solvent tanker, and entered bucket packaging by the lanolin finished product that 4# evaporating pot is evaporated;
Discharge waste residue soil by 2# extracter, be transported to 6# waste residue whizzer, after drying, be transported to 7# co-grinding machine, then be transported to 8# nitrogen phosphorus mixing machine, add nitrogenous fertilizer and phosphate fertilizer in setting ratio, after mixing, then rise to 9# rotary disc feeder place, carry out metering pack, sealing, to obtain final product;
Describedly reclaim wool perspiration and sylvite from neutral wool washing waste water closed loop through reverse osmosis, comprise the steps:
(1) after associating wool washing machine adopts the large and small circulating treating system of neutral closed loop, systemic circulation 2-3# ultra-fine filter, deliver in 2-5# clean water tank through clear water, reuse scouring of wool, and unnecessary water, through the reverse osmosis of 1# fine filting machine, through pure water, do rinse water, through the macromole water of 1# fine filting machine reverse osmosis concentration through 2# clean water tank with being pumped into wool washing machine 4,5 groove, be pumped into wool washing machine 1,2,3 groove by 3# concentration tank, go scouring of wool with wool perspiration sylvite;
(2), sylvite, i.e. wool perspiration process system flow process is reclaimed:
The macromole water of 1# fine filting machine reverse osmosis concentration, after 3# concentration tank is concentrated, filters through being pumped in 4# filter, be separated with being pumped into 5# electrodialytic membranes after completing, isolate xln (1) through 6# whizzer again, deliver to 7# drying machine and dry, packaging final prod salt of wormwood; Isolate mother liquor (2) pumping wool washing machine reuse scouring of wool.
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| CN108660515A (en) * | 2018-04-25 | 2018-10-16 | 宁夏荣昌绒业集团有限公司 | A kind of control grease rate washes former velvet figures method |
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