CN108249668A - Slurrying yellow liquor concentrate and dry Processes and apparatus - Google Patents
Slurrying yellow liquor concentrate and dry Processes and apparatus Download PDFInfo
- Publication number
- CN108249668A CN108249668A CN201611232928.8A CN201611232928A CN108249668A CN 108249668 A CN108249668 A CN 108249668A CN 201611232928 A CN201611232928 A CN 201611232928A CN 108249668 A CN108249668 A CN 108249668A
- Authority
- CN
- China
- Prior art keywords
- unit
- spray drying
- dope
- slurrying
- multistage membranes
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000012141 concentrate Substances 0.000 title claims abstract description 21
- 238000001035 drying Methods 0.000 title claims abstract description 12
- 239000012528 membrane Substances 0.000 claims abstract description 57
- 238000001694 spray drying Methods 0.000 claims abstract description 41
- 238000001704 evaporation Methods 0.000 claims abstract description 39
- 230000008020 evaporation Effects 0.000 claims abstract description 38
- 238000000034 method Methods 0.000 claims abstract description 16
- 238000004062 sedimentation Methods 0.000 claims abstract description 16
- 238000005189 flocculation Methods 0.000 claims abstract description 15
- 230000016615 flocculation Effects 0.000 claims abstract description 15
- 239000003814 drug Substances 0.000 claims abstract description 10
- 238000004140 cleaning Methods 0.000 claims abstract description 9
- 238000002203 pretreatment Methods 0.000 claims abstract description 9
- 239000002455 scale inhibitor Substances 0.000 claims abstract description 7
- 239000007788 liquid Substances 0.000 claims description 31
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 27
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 18
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims description 16
- 230000008676 import Effects 0.000 claims description 14
- 238000009833 condensation Methods 0.000 claims description 10
- 230000005494 condensation Effects 0.000 claims description 10
- 238000004519 manufacturing process Methods 0.000 claims description 10
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 9
- 239000000395 magnesium oxide Substances 0.000 claims description 8
- 238000000926 separation method Methods 0.000 claims description 7
- 239000012530 fluid Substances 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 4
- 239000011777 magnesium Substances 0.000 claims description 4
- 229910052749 magnesium Inorganic materials 0.000 claims description 4
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims description 3
- 239000011575 calcium Substances 0.000 claims description 3
- 229910052791 calcium Inorganic materials 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 238000001556 precipitation Methods 0.000 claims description 3
- 229910052710 silicon Inorganic materials 0.000 claims description 3
- 239000010703 silicon Substances 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 claims description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims 1
- 239000000463 material Substances 0.000 claims 1
- 229910052760 oxygen Inorganic materials 0.000 claims 1
- 239000001301 oxygen Substances 0.000 claims 1
- 238000005265 energy consumption Methods 0.000 abstract description 2
- 238000003672 processing method Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 5
- 238000004064 recycling Methods 0.000 description 4
- 239000002351 wastewater Substances 0.000 description 4
- 238000007599 discharging Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000654 additive Substances 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 230000001413 cellular effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000010902 straw Substances 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/02—Treatment of water, waste water, or sewage by heating
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/26—Nature of the water, waste water, sewage or sludge to be treated from the processing of plants or parts thereof
- C02F2103/28—Nature of the water, waste water, sewage or sludge to be treated from the processing of plants or parts thereof from the paper or cellulose industry
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F5/00—Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents
- C02F5/08—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents
Abstract
A kind of slurrying yellow liquor concentrate and dry Processes and apparatus, technique concentrate the processing method being combined with evaporation, spray drying for Multistage Membranes, and technique includes：Pre-treatment step, Multistage Membranes concentration step, dope evaporation step, spray drying step.Equipment is made of pretreatment unit, Multistage Membranes upgrading unit, evaporation element, spray drying unit, is sequentially connected in series.Pretreatment unit is equipped with flocculation basin, sedimentation basin, intermediate pool, pre-treatment medicaments throwing device.Multistage Membranes upgrading unit is equipped with feed pump, membrane concentrator group, scale inhibitor feeding device, cleaning system.It is connect again with multi-effect evaporator after the preheated device of evaporation element, feed pump and preheater connection, spray drying unit is equipped with cyclone separator through hopper, heater, pump, access spray drying main body, main body.It is an advantage of the invention that after being pre-processed using pretreatment unit to stoste, then concentrated by Multistage Membranes and multistage concentration is carried out to it, it is recycled after being re-fed into spray drying cell processing after dope feeding evaporation, more energy consumption is saved than being sent directly into evaporation element.
Description
Technical field
The present invention relates to a kind of water treatment technology and equipment, more particularly to a kind of Multistage Membranes concentration and evaporation, spray drying
The processing slurrying yellow liquor concentrate being combined and dry Processes and apparatus.
Background technology
Papermaking enterprise especially stalk papermaking enterprise is using stock (selection raw material, cleaning), cut-out, extraction straw mostly
Skin pre-processes boiling, drifts, cleans, and is beaten, and configuration various additives, paper stock mixing, copy paper, press dewatering are dried into paper etc.
Production process, each production process generate the waste water of amplification quantity side by side in process of production.Especially middle section water yellow liquor has row
The features such as water is big, its complicated pollutional load of pollutant is high.These waste water are drained into conventional water treatment system in the past, investment is built
If the useful component in costly and waste water is not recycled, the recycling of resource can not be realized.With National Environmental Protection Agency pair
The raising of wastewater discharge standard and the requirement of Sustainable Development of Enterprises, recycling for resource are extremely urgent.It is recycled skill
Art is the key that solve such wastewater treatment requirement.
Due to the high organic content of slurrying middle section water yellow liquor, be directly entered biochemical treatment, intractability is big, and invest into
This is big.At present mostly using being reprocessed after evaporation, operating cost is higher and the easy fouling of evaporator is difficult to clean off.
Invention content
The purpose of the present invention is being directed to defect present in prior art, a kind of slurrying yellow liquor concentrate and dry work are provided
Skill and equipment.The present invention enters Multistage Membranes upgrading unit, then pass through multistage after being pre-processed using pretreatment unit to stoste
Film upgrading unit carries out feed liquor multistage concentration, and clear liquid connects postorder processing or in line, and dope is sent into evaporation element by further
Spray drying unit is sent into after concentration, by being recycled after spray drying treatment.The present invention technique for Multistage Membranes concentrate with evaporate,
It is spray-dried the processing slurrying yellow liquor concentrate being combined and dry technique.Its technique comprises the steps of：
(1) stoste is sent into pretreatment unit, magnesia, sodium hydroxide, sodium carbonate etc. is added in pretreatment unit, profit
It is removed after generating precipitation with silicon, calcium, the magnesium plasma reaction in stoste with magnesia, sodium hydroxide, sodium carbonate etc., so as to reach
The feed liquor requirement of Multistage Membranes upgrading unit；
(2) step (1) treated liquid will be passed through and is sent into Multistage Membranes upgrading unit, liquid carried out using Multistage Membranes dense
Contracting is handled, and isolates the clear liquid met the requirements in treatment fluid, and by the dope concentration for the treatment of fluid to meet evaporation element requirement
Dope；
(3) step (2) treated dope will be passed through and is sent into evaporation element, dope carried out by evaporation further deep
Spray drying unit is sent into after degree concentration；
(4) it step (3) will be passed through treated super dope will be sent into and be spray-dried unit, using being spray-dried principle to super dense
Recycling is dried in liquid.
The concentration to stoste can be achieved in the step (2) and be more than 20 times, clear liquid output capacity is more than 70% concentrate.
Slurrying yellow liquor concentrate and drying equipment, including：Pretreatment unit, Multistage Membranes upgrading unit, evaporation element, spraying are dry
Dry unit, it is characterised in that the pretreatment unit, Multistage Membranes upgrading unit, evaporation element, spray drying unit are sequentially connected in series
Connection, pretreatment unit are equipped with flocculation basin, sedimentation basin, intermediate pool, flocculation stirring machine are equipped in flocculation basin, pre-treatment medicaments are thrown
Feeder apparatus, flocculation basin, sedimentation basin, intermediate pool are alternatively arranged, and flocculation basin is co-walled with sedimentation basin, and liquid is flowed by the hole opened on co-walled
Enter sedimentation basin；Sedimentation basin is co-walled with intermediate pool, and liquid flows into intermediate pool by the hole opened on co-walled；By the height control of pool wall
Liquid processed is connect into outflow, intermediate pool outlet through pipeline with the charging pump inlet of Multistage Membranes upgrading unit, Multistage Membranes concentration
Unit is equipped with pump, membrane concentrator group, scale inhibitor feeding device, cleaning system, pumps and is connect through pipeline with membrane concentrator group, Multistage Membranes
Concentration unit production clear liquid mouth reserves connection postorder processing or in line, and membrane concentrator group production dope mouth is connect with evaporation element import,
The preheated device of evaporation element, feed pump and preheater import connect, then are connect with multi-effect evaporator, the separate type of multi-effect evaporator
Dope is exported to be connect with spray drying unit inlet, and spray drying unit is spray-dried main body through hopper, heater, pump, access,
Spray drying main body is connect respectively with cyclone separator, exhaust blower, air heater, air blower.
The pre-treatment medicaments throwing device of the pretreatment unit is to add magnesia, sodium hydroxide, sodium carbonate medicament
Equipment.
The membrane concentrator group of the Multistage Membranes upgrading unit is 1~3 group, and scale inhibitor feeding device is equipped in membrane concentrator group
And cleaning system.
The evaporation element is equipped with feed pump, preheater, condenser, multi-effect evaporator, condensation chamber, and multi-effect evaporator is set again
Effectively heating room, separation chamber, circulating pump.Preheater import is connect with feed pump, and preheater outlet connects with multi-effect evaporator import
It connects, the separation chamber of multi-effect evaporator is connect with condensation chamber import, and the outlet of condensation chamber is concentrated solution outlet.
Be equipped in the spray drying unit hopper, pump, heater, spray drying main body, cyclone separator, exhaust blower,
Air heater, air blower.Hopper accesses spray drying main body with heater through pump, is spray-dried main body, air blower, air add
Hot device and cyclone separator, exhaust blower are respectively connected to spray drying main body.
It is an advantage of the invention that entering Multistage Membranes upgrading unit after being pre-processed using pretreatment unit to stoste, then lead to
It crosses Multistage Membranes upgrading unit and multistage concentration is carried out to feed liquor, clear liquid connects postorder processing or in line, and dope is sent into evaporation element and is passed through
Further concentration after be sent into spray drying unit, by being recycled after spray drying treatment, than be sent directly into evaporation element saving compared with
More energy consumptions.
Description of the drawings
The process flow diagram of Fig. 1 present invention；
The pretreatment unit structure diagram of Fig. 2 present invention；
The Multistage Membranes upgrading unit structure diagram of Fig. 3 present invention；
The evaporation element structure diagram of Fig. 4 present invention；
The spray drying cellular construction schematic diagram of Fig. 5 present invention.
In figure：1 flocculation basin, 1-1 inlets, 1-2 drains, 1-3 blenders, 1-4 pre-treatment medicaments throwing device, 2 sink
Shallow lake pond, 2-1 mud discharging mouths, 3 intermediate pools, 3-1 liquid outlets, 3-2 drains, 4 feed pumps, 5 membrane concentrator groups, 5-1 antisludging agents are thrown
Feeder apparatus, 5-2 cleaning systems, 6 production clear liquid mouths, 7 production dope mouths, 8 feed pumps, 9 preheaters, 10 condensers, 11 multi-effect evaporators,
11-1 heating room, 11-2 separation chambers, 11-3 circulating pumps, 12 condensation chambers, 13 concentrated solution outlets, 14 hoppers, 15 heaters, 16 pump,
17 spray drying main bodys, 18 cyclone separators, 19 exhaust blowers, 20 air heaters, 21 air blowers.
Specific embodiment
The embodiment further illustrated the present invention below in conjunction with the accompanying drawings：
Referring to Fig. 1, the present embodiment is by pretreatment unit, Multistage Membranes upgrading unit, evaporation element, spray drying unit group
Into.Enter Multistage Membranes upgrading unit after being pre-processed using pretreatment unit to stoste, then pass through Multistage Membranes upgrading unit pair
Feed liquor carries out multistage concentration, and clear liquid connects postorder processing or in line, and dope is sent into evaporation element and spray is sent into after further concentrating
Mist drying unit, by being recycled after spray drying treatment.Pretreatment unit, Multistage Membranes upgrading unit, evaporation element, spray drying
Unit is sequentially connected in series.
Referring to Fig. 2, pretreatment unit is equipped with flocculation basin 1, sedimentation basin 2, intermediate pool 3.Flocculation basin 1, sedimentation basin 2, centre
Pond 3 is alternatively arranged, and flocculation basin 1 and sedimentation basin 2 are co-walled, and liquid flows into sedimentation basin 2 by the hole opened on co-walled.Sedimentation basin 2 is in
Between pond 3 it is co-walled, liquid flows into intermediate pool 3 by the hole opened on co-walled；Liquid is controlled into outflow by the height of pool wall.Wadding
Flocculation stirring machine 1-3, pre-treatment medicaments throwing device 1-4, the pre-treatment medicaments throwing device of pretreatment unit are equipped in solidifying pond 1
1-4 is the equipment for adding magnesia, sodium hydroxide, sodium carbonate medicament.The liquid outlet 3-1 of intermediate pool 3 is through pipeline and Multistage Membranes
4 import of the feed pump connection of upgrading unit.Intermediate pool 3 is equipped with drain 3-2.Sedimentation basin 2 is equipped with mud discharging mouth 2-1.
Referring to Fig. 3, Multistage Membranes upgrading unit is equipped with feed pump 4, membrane concentrator group 5, scale inhibitor feeding device 5-1, cleaning
System 5-2, feed pump 4 are connect through pipeline with membrane concentrator group 5, the reserved connection postorder processing of production clear liquid mouth 6 of membrane concentrator group 5
It is or in line.Membrane concentrator group 5 is produced dope mouth 7 and is connect with evaporation element import.The membrane concentrator group 5 of Multistage Membranes upgrading unit is 1
~3 groups, the present embodiment is 2 groups.Scale inhibitor feeding device 5-1 and cleaning system 5-2 is equipped in membrane concentrator group 5.
Referring to Fig. 4, evaporation element is equipped with feed pump 8, preheater 9, condenser 10, multi-effect evaporator 11, condensation chamber 12, more
Effect evaporator 11 is additionally provided with effect heating room 11-1, separation chamber 11-2, circulating pump 11-3.Evaporation element is through pipeline and feed pump 8, pre-
Hot 9 import of device connection, then connect with the import of multi-effect evaporator 11, the outlet and condensation of the separation chamber 11-2 of multi-effect evaporator 11
Room 12 connects, and the outlet of condensation chamber 12 is concentrated solution outlet 13.Concentrated solution outlet 13 is connect with spray drying unit inlet.
Referring to Fig. 5, hopper 14, heater 15, pump 16, spray drying main body 17, whirlwind point are equipped in spray drying unit
From device 18, exhaust blower 19, air heater 20, air blower 21.Unit is spray-dried through hopper 14, heater 15, pump 16, access
Main body 17 is spray-dried, air blower 21, air heater 20 and cyclone separator 18, exhaust blower 19 are respectively connected to be spray-dried
Main body.
The technique of the present embodiment is concentrated for Multistage Membranes with evaporating, being spray-dried the processing slurrying yellow liquor concentrate being combined and do
Dry technique.Its technique comprises the steps of：
(1) stoste is sent into pretreatment unit, magnesia, sodium hydroxide, sodium carbonate etc. is added in pretreatment unit, profit
It is removed after generating precipitation with silicon, calcium, the magnesium plasma reaction in stoste with magnesia, sodium hydroxide, sodium carbonate etc., so as to reach
The feed liquor requirement of Multistage Membranes upgrading unit；
(2) step (1) treated liquid will be passed through and is sent into Multistage Membranes upgrading unit, liquid carried out using Multistage Membranes dense
Contracting is handled, and isolates the clear liquid met the requirements in treatment fluid, and by the dope concentration for the treatment of fluid to meet evaporation element requirement
Dope；
(3) step (2) treated dope will be passed through and is sent into evaporation element, dope carried out by evaporation further deep
Spray drying unit is sent into after degree concentration；
(4) it step (3) will be passed through treated super dope will be sent into and be spray-dried unit, using being spray-dried principle to super dense
Recycling is dried in liquid.
Dope rate is realized in the step (2) and is more than 20 times, clear liquid yield is more than 70% concentration.The present embodiment dope
Rate is 20 times.
Claims (7)
1. a kind of slurrying yellow liquor concentrate and dry technique, technique concentrates the place being combined with evaporation, spray drying for Multistage Membranes
Reason method, technique comprise the steps of：
(1) stoste is sent into pretreatment unit, magnesia, sodium hydroxide, sodium carbonate etc. is added in pretreatment unit, utilizes oxygen
Change after magnesium, sodium hydroxide, sodium carbonate etc. generate precipitation with silicon, calcium, the magnesium plasma reaction in stoste and remove, it is multistage so as to reach
The feed liquor requirement of film upgrading unit；
(2) step (1) treated liquid will be passed through and is sent into Multistage Membranes upgrading unit, liquid will be carried out at concentration using Multistage Membranes
Reason isolates the clear liquid met the requirements in treatment fluid, and is to meet the dope of evaporation element requirement by the dope concentration for the treatment of fluid；
(3) step (2) treated dope will be passed through and is sent into evaporation element, it is dense to carry out further depth to dope by evaporation
Spray drying unit is sent into after contracting；
(4) step (3) will be passed through treated super dope be sent into and be spray-dried unit, using be spray-dried principle to super dope into
Row dried recovered.
2. slurrying yellow liquor concentrate according to claim 1 and dry technique, it is characterised in that can be real in the step (2)
Now it is more than 20 times to the concentration of stoste, clear liquid output capacity is more than 70% concentrate.
3. the slurrying yellow liquor concentrate and drying equipment of slurrying yellow liquor concentrate according to claim 1 and drying process, including：Pre- place
Manage unit, Multistage Membranes upgrading unit, evaporation element, spray drying unit, it is characterised in that the pretreatment unit, Multistage Membranes are dense
Contracting unit, evaporation element, spray drying unit are sequentially connected in series, and pretreatment unit is equipped with flocculation basin, sedimentation basin, intermediate water
Pond is equipped with flocculation stirring machine, pre-treatment medicaments throwing device in flocculation basin, and flocculation basin is co-walled with sedimentation basin, and liquid is by co-walled
The hole opened flows into sedimentation basin；Sedimentation basin is co-walled with intermediate pool, and liquid flows into intermediate pool by the hole opened on co-walled；Intermediate pool
Outlet is connect through pipeline with the charging pump inlet of Multistage Membranes upgrading unit, and Multistage Membranes upgrading unit is equipped with feed pump, membrane concentrator
Group, scale inhibitor feeding device, cleaning system, feed pump are connect through pipeline with membrane concentrator group, and membrane concentrator group production clear liquid mouth is pre-
Linger on connect postorder processing or it is in line, membrane concentrator group production dope mouth connect with evaporation element import, the preheated device of evaporation element, into
Material pump is connect, then connect with multi-effect evaporator with preheater import, the outlet of separate type dope and spray drying of multi-effect evaporator
Unit inlet connect, spray drying unit through hopper, heater, pump, access spray drying main body, spray drying main body respectively with
Cyclone separator, exhaust blower, air heater, air blower connection.
4. slurrying yellow liquor concentrate according to claim 3 and drying equipment, it is characterised in that the pretreatment unit it is pre-
Treatment agent throwing device is the equipment for adding magnesia, sodium hydroxide, sodium carbonate medicament.
5. slurrying yellow liquor concentrate according to claim 3 and drying equipment, it is characterised in that the Multistage Membranes upgrading unit
Equipped with feed pump, membrane concentrator group, scale inhibitor feeding device and cleaning system.
6. slurrying yellow liquor concentrate according to claim 3 and drying equipment, it is characterised in that the evaporation element is additionally provided with
Feed pump, preheater, condenser, multi-effect evaporator, condensation chamber, multi-effect evaporator set effectively heating room, separation chamber, cycle again
Pump, preheater import connect with feed pump, and preheater is exported and connect with multi-effect evaporator import, the separation chamber of multi-effect evaporator and
Condensation chamber import connects, and the outlet of condensation chamber is concentrated solution outlet.
7. slurrying yellow liquor concentrate according to claim 3 and drying equipment, it is characterised in that in the spray drying unit
Be additionally provided with hopper, pump, heater, spray drying main body, cyclone separator, exhaust blower, air heater, air blower, hopper with
Heater accesses spray drying main body through pump, is spray-dried main body, air blower, air heater and cyclone separator, air draft
Machine is respectively connected to spray drying main body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611232928.8A CN108249668A (en) | 2016-12-28 | 2016-12-28 | Slurrying yellow liquor concentrate and dry Processes and apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611232928.8A CN108249668A (en) | 2016-12-28 | 2016-12-28 | Slurrying yellow liquor concentrate and dry Processes and apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108249668A true CN108249668A (en) | 2018-07-06 |
Family
ID=62719043
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611232928.8A Pending CN108249668A (en) | 2016-12-28 | 2016-12-28 | Slurrying yellow liquor concentrate and dry Processes and apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108249668A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110204125A (en) * | 2019-06-14 | 2019-09-06 | 齐鲁工业大学 | A kind of recycling reuse method of dangerization spent acid |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5254286A (en) * | 1991-05-31 | 1993-10-19 | Calgon Corporation | Composition for controlling scale in black liquor evaporators |
| US5849197A (en) * | 1994-03-17 | 1998-12-15 | Amcor Limited | Regeneration of pulp liquors |
| CN105236651A (en) * | 2015-10-03 | 2016-01-13 | 中国轻工业长沙工程有限公司 | Technology for evaporating and crystallizing high concentration salt-containing wastewater in pulping and papermaking industries |
| CN105314783A (en) * | 2015-10-16 | 2016-02-10 | 上海晶宇环境工程股份有限公司 | Coal-fired power plant desulfurization waste water zero-emission treating technology and device special for treating technology |
| CN205386347U (en) * | 2016-02-22 | 2016-07-20 | 麦王环境技术股份有限公司 | High strong brine of reuse of reclaimed water divides matter crystallization integrated equipment |
| CN205603386U (en) * | 2016-01-14 | 2016-09-28 | 麦王环境技术股份有限公司 | Strong brine zero release membrane concentrator |
-
2016
- 2016-12-28 CN CN201611232928.8A patent/CN108249668A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5254286A (en) * | 1991-05-31 | 1993-10-19 | Calgon Corporation | Composition for controlling scale in black liquor evaporators |
| US5849197A (en) * | 1994-03-17 | 1998-12-15 | Amcor Limited | Regeneration of pulp liquors |
| CN105236651A (en) * | 2015-10-03 | 2016-01-13 | 中国轻工业长沙工程有限公司 | Technology for evaporating and crystallizing high concentration salt-containing wastewater in pulping and papermaking industries |
| CN105314783A (en) * | 2015-10-16 | 2016-02-10 | 上海晶宇环境工程股份有限公司 | Coal-fired power plant desulfurization waste water zero-emission treating technology and device special for treating technology |
| CN205603386U (en) * | 2016-01-14 | 2016-09-28 | 麦王环境技术股份有限公司 | Strong brine zero release membrane concentrator |
| CN205386347U (en) * | 2016-02-22 | 2016-07-20 | 麦王环境技术股份有限公司 | High strong brine of reuse of reclaimed water divides matter crystallization integrated equipment |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110204125A (en) * | 2019-06-14 | 2019-09-06 | 齐鲁工业大学 | A kind of recycling reuse method of dangerization spent acid |
| CN110204125B (en) * | 2019-06-14 | 2022-04-01 | 齐鲁工业大学 | Resource recycling method for hazardous waste acid |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207243712U (en) | A kind of dehydration car of vehicle-mounted sludge concentration device | |
| CN103373801B (en) | Continuous dehydrating method and device for explosive production wastewater and sludge | |
| CN103466829A (en) | Treatment method of high-concentration ammonia nitrogen waste water and treatment system of treatment method | |
| CN208345792U (en) | A kind of double-effect evaporation desalter for mercury processing system in PVC production process | |
| CN206345756U (en) | Slurrying yellow liquor concentrate and drying equipment | |
| CN108249668A (en) | Slurrying yellow liquor concentrate and dry Processes and apparatus | |
| CN109133465A (en) | A kind of Waste Heat Reuse vacuum membrane distillation zero discharge treatment device and method | |
| CN205500983U (en) | Zero release of desulfurization waste water and resource integrated treatment retrieval and utilization equipment | |
| CN107902829A (en) | Cold rolling emulsion and oil-bearing wastewater reuse technology and its device | |
| CN208700784U (en) | Potato starch wastewater defoaming system | |
| CN210795831U (en) | Double-effect falling film and single-effect forced circulation double-row double-steam-inlet MVR evaporation crystallization system | |
| CN209442659U (en) | The system of sodium sulphate is recycled from high saliferous modified starch waste water | |
| CN214289946U (en) | Washing and desalting device for waste incineration fly ash | |
| CN204824498U (en) | Landfill leachate zero release processing system | |
| CN203833652U (en) | Device for treating chitin soda boiling waste water | |
| CN211339161U (en) | Treatment device for realizing zero discharge of desulfurization wastewater by bypass evaporation process | |
| CN208166612U (en) | The device of wastewater minimisation processing is carried out using low-temperature flue gas waste heat | |
| CN208732665U (en) | High-salt wastewater inspissator | |
| CN206799349U (en) | A kind of fracturing outlet liquid processing unit | |
| CN209178163U (en) | A kind of secondary sodium waste water and light salt brine desalter for acetylene production system | |
| CN207091241U (en) | A kind of ozone air-float device suitable for micropollutant water processing | |
| CN104402191A (en) | Energy-saving disc type drying system | |
| CN104556555A (en) | Zero pollution discharge system for treating papermaking black liquor and treatment method thereof | |
| CN209468142U (en) | A kind of landfill leachate concentration liquid treating system | |
| CN215102408U (en) | Treatment system for reducing hardness of circulating water |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180706 |
|
| WD01 | Invention patent application deemed withdrawn after publication |