CN109317078A - A kind of nano-sized magnesium hydroxide recycling concentric drums reactor - Google Patents
A kind of nano-sized magnesium hydroxide recycling concentric drums reactor Download PDFInfo
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- CN109317078A CN109317078A CN201811361070.4A CN201811361070A CN109317078A CN 109317078 A CN109317078 A CN 109317078A CN 201811361070 A CN201811361070 A CN 201811361070A CN 109317078 A CN109317078 A CN 109317078A
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- inner cylinder
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- magnesium hydroxide
- sized magnesium
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/0053—Details of the reactor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/18—Stationary reactors having moving elements inside
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y30/00—Nanotechnology for materials or surface science, e.g. nanocomposites
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F5/00—Compounds of magnesium
- C01F5/14—Magnesium hydroxide
Abstract
The present invention relates to a kind of nano-sized magnesium hydroxides to recycle concentric drums reactor, including inner cylinder (1), outer cylinder (2), blender (3), it stores mud groove (6), dosing tank (7) and crystal seed reflux pump (9), the reactor is provided with water inlet (4), water outlet (8) and mud discharging mouth (5), the inner cylinder (1) is placed in outer cylinder (2), and it is arranged concentrically, it is fixedly connected between inner cylinder (1) and outer cylinder (2), the blender (3) is placed in inner cylinder (1), the storage mud groove (6) is placed in below mud discharging mouth (5), the dosing tank (7) is placed in above inner cylinder (1), the crystal seed reflux pump (9) is separately connected by pipeline stores mud groove (6) and inner cylinder (1).Compared with prior art, operation of the present invention simplicity is, it can be achieved that nano-sized magnesium hydroxide recycling, economy and obvious environment benefit.
Description
Technical field
The present invention relates to a kind of recycling reactors of nano-sized magnesium hydroxide, receive more particularly, to recycling in a kind of waste water containing magnesium
The concentric drums reactor of rice magnesium hydroxide and relevant processing method.
Background technique
Nano-sized magnesium hydroxide is nontoxic, tasteless, and has fire-retardant, filling and suppression cigarette triple functions, is exploitation flame-retardant polymer
Perfect additive, got more and more people's extensive concerning, and whether nano-sized magnesium hydroxide recycling reactor design has become and can
Realize industrialized important link.It is that the preparation of magnesium hydroxide and its particle are refined as one that nano-sized magnesium hydroxide, which recycles reactor,
Body plays the place of wastewater treatment containing magnesium of nano-sized magnesium hydroxide recovery technology to greatest extent, therefore it should have waste water containing magnesium, remove
The essential characteristic that magnesium medicament and crystal seed come into full contact with.It is easy to operate, process flow is short, wide adaptability, remarkable in economical benefits are to receive
The basic demand of rice magnesium hydroxide recycling reactor.
Currently, nano-sized magnesium hydroxide recycling reactor mainly has two major classes: one kind is the water with temperature control and pressure control device
Thermal reactor, it is another kind of, it is the Direct precipitation reactor based on adding of agent.The former device cost of manufacture height, operating process
It is complicated and energy consumption is high；The latter can generate nano-sized magnesium hydroxide by simple feeding operations, and easy to operate, economy is strong,
But produced nano-sized magnesium hydroxide settleability is poor, it is difficult to realize and be separated by solid-liquid separation, simultaneous reactions process needs plus seed, causes medicament
Waste.
Summary of the invention
It is good that it is an object of the present invention to overcome the above-mentioned drawbacks of the prior art and provide a kind of effects, energy consumption
Low, processing cost is low, mild condition nano-sized magnesium hydroxide recycles concentric drums reactor.
The purpose of the present invention can be achieved through the following technical solutions: a kind of nano-sized magnesium hydroxide recycling concentric drums are anti-
Answer device, which is characterized in that including inner cylinder (1), outer cylinder (2), blender (3), store mud groove (6), dosing tank (7) and crystal seed reflux pump
(9), the reactor is provided with water inlet (4), water outlet (8) and mud discharging mouth (5), and the inner cylinder (1) is placed in outer cylinder (2)
It is interior, and be arranged concentrically, it is fixedly connected between inner cylinder (1) and outer cylinder (2), the blender (3) is placed in inner cylinder (1), described
Storage mud groove (6) be placed in below mud discharging mouth (5), the dosing tank (7) is placed in above inner cylinder (1), the crystal seed reflux pump
(9) it is separately connected by pipeline and stores mud groove (6) and inner cylinder (1).
It is adhesively fixed between the inner cylinder (1) and outer cylinder (2) by tempered glass, inner cylinder is fixed on outer cylinder, is made
The two is concentric.
The water inlet (4) is connected on inner cylinder (1) side wall, is added by water inlet (4) into inner cylinder (1) and is contained magnesium
The waste water of ion.
The water outlet (8) is arranged on outer cylinder (2) side wall.
In coniform, outlet at bottom is mud discharging mouth (5) for outer cylinder (2) bottom.
The outer cylinder (2) is surrounded by the support frame of support reactor.
The storage mud groove (6) is located at immediately below reactor, for storing mud discharging mouth (5) arranged nano-sized magnesium hydroxide.
The crystal seed reflux pump (9) is located at reactor side, will store the nano-sized magnesium hydroxide in mud groove (6) as crystal seed
Blowback is to inner cylinder (1), and the ratio that adds of crystal seed is 0.2-2.0g/L in inner cylinder (1) waste water.
When the waste water height inputted to inner cylinder (1) reaches the 1/3~1/2 of inner cylinder (1) vertical height, the blender is opened
(3), start spoil disposal when producing mud height and being higher than the 1/4 of outer cylinder (2).
It is 8.5-12.0 that the pH value of waste water, which adjusts control, in inner cylinder (1).
The dosing tank memory is placed with demagging and improved chemical, and demagging and improved chemical can be periodically added into inner cylinder.
Demagging and improved chemical are the commercial product of this field routine.
The present invention is that the main part of reactor is designed to that concentric drums, waste water enter from the inlet inner cylinder, with dosing
The demagging of case addition and improved chemical are reacted, and magnesium ion reaction generates nano-sized magnesium hydroxide, remaining waste water enters through interior
Gap between cylinder and outer cylinder is discharged from water outlet, is risen by intaking to the lengthening of water outlet distance and the filtration of sediment
To the effect of compacting, be separated by solid-liquid separation in order to realize, settle optimization technique relative to other, occupied area is small, adding of agent at
This is low, higher to the treatment effeciency of the waste water containing magnesium.
In addition, the crystal seed that flows back simultaneously during demagging, be not only able to reduction medicament adds cost, obtains particle more
For uniform nano-sized magnesium hydroxide, the dosing box number configured needed for can also reducing reduces the load of reactor, reduces technique
The operation difficulty of process.
Compared with prior art, effect of the present invention is good, and low energy consumption, it is only necessary to add a small amount of demagging and improved chemical, locate
It manages at low cost.Treatment conditions are mild, and nano-sized magnesium hydroxide can be generated under normal temperature and pressure, are magnesium ions in a kind of ideal waste water
The process without drainage of waste water route of removal and sediment recycling.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of reactor of the present invention；
It is identified in figure are as follows: 1 inner cylinder, 2 outer cylinders, 3 blenders, 4 water inlets, 5 mud discharging mouths, 6 store mud groove, 7 dosing tanks, 8 water outlets
Mouth and 9 crystal seed reflux pumps.
Specific embodiment
The present invention is described in detail with specific embodiment below in conjunction with the accompanying drawings.
As shown in Figure 1, a kind of nano-sized magnesium hydroxide recycles concentric drums reactor, including inner cylinder 1, outer cylinder 2, blender 3,
Mud groove 6, dosing tank 7 and crystal seed reflux pump 9 are stored, the reactor is provided with water inlet 4, water outlet 8 and mud discharging mouth 5, described
Inner cylinder 1 is placed in outer cylinder 2, is adhesively fixed between inner cylinder 1 and outer cylinder 2 by tempered glass, inner cylinder is fixed on outer cylinder, make two
Person is concentric.The blender 3 is placed in inner cylinder 1, and the water inlet 4 is connected on 1 side wall of inner cylinder, by water inlet 4 to
The waste water containing magnesium ion is added in inner cylinder 1.The water outlet 8 is arranged on 2 side wall of outer cylinder.2 bottom of outer cylinder is in
Coniform, outlet at bottom is mud discharging mouth 5.The storage mud groove 6 is placed in immediately below reactor, face mud discharging mouth 5, for the row of storage
The arranged nano-sized magnesium hydroxide of mud mouth 5, the dosing tank 7 are placed in 1 top of inner cylinder, described for adding magnesium ion removal medicament
Crystal seed reflux pump 9 be located at reactor side.
The outer cylinder 2 is surrounded by the support frame of support reactor.Support frame is provided with below crystal seed reflux pump 9.
In use, waste water enters inner cylinder 1 from water inlet 4, while adding medicament to inner cylinder with dosing tank 7, inputted to inner cylinder 1
Waste water height reach 1 vertical height of inner cylinder 1/3~1/2 when, open the blender 3, in inner cylinder 1 waste water pH value adjust
Control is 8.5-12.0, and the demagging and improved chemical that waste water and dosing tank 7 adds are reacted, and magnesium ion reacts generation nanometer hydrogen
Magnesia begins through the spoil disposal into storage mud groove 6 of mud discharging mouth 5 when producing mud height and being higher than the 1/4 of outer cylinder 2.Remaining waste water enters
By the gap between inner cylinder 1 and outer cylinder 2, it is discharged from water outlet 8.Crystal seed reflux pump 9 is separately connected by pipeline stores 6 He of mud groove
Inner cylinder 1 will store the nano-sized magnesium hydroxide in mud groove 6 as crystal seed blowback to inner cylinder 1, and crystal seed adds ratio in 1 waste water of inner cylinder
For 0.2-2.0g/L.
Specific example using above-mentioned apparatus processing waste water is as follows:
Embodiment 1
The desulfurization that initial magnesium ion concentration is 2000mg/L is added into nano-sized magnesium hydroxide recycling concentric drums reactor
Waste water (after pretreatment), magnesium ion removal efficiency be 99.7%, aqueous concentration 0.6mg/L, at this time the partial size of sediment be
1.52μm。
Embodiment 2
The papermaking that initial magnesium ion concentration is 3200mg/L is added into nano-sized magnesium hydroxide recycling concentric drums reactor
Waste water (after pretreatment), magnesium ion removal efficiency be 99.7%, aqueous concentration 0.9mg/L, at this time the partial size of sediment be
1.78nm。
Embodiment 3
The nanofiltration that initial magnesium ion concentration is 1600mg/L is added into nano-sized magnesium hydroxide recycling concentric drums reactor
Concentrated water, magnesium ion removal efficiency are 99.8%, aqueous concentration 0.3mg/L, and the partial size of sediment is 0.64 μm at this time.
Embodiment 4
The papermaking that initial magnesium ion concentration is 4200mg/L is added into nano-sized magnesium hydroxide recycling concentric drums reactor
Waste water (after pretreatment), magnesium ion removal efficiency be 99.8%, aqueous concentration 0.8mg/L, at this time the partial size of sediment be
1.21μm。
In addition, it should be noted that, the specific embodiments described in this specification, the shape of parts and components are named
Title etc. can be different.All equivalent or simple changes done according to the specially design of the invention structure, feature and principle include
In in the scope of protection of the patent of the present invention.Those skilled in the art can be to described specific embodiment
It does various modifications or additions or is substituted in a similar manner, without departing from structure of the invention or surmount this power
Range defined in sharp claim, is within the scope of protection of the invention.
Claims (10)
1. a kind of nano-sized magnesium hydroxide recycles concentric drums reactor, which is characterized in that including inner cylinder (1), outer cylinder (2), stirring
Device (3), storage mud groove (6), dosing tank (7) and crystal seed reflux pump (9), the reactor are provided with water inlet (4), water outlet (8)
With mud discharging mouth (5), the inner cylinder (1) is placed in outer cylinder (2), and is arranged concentrically, fixed between inner cylinder (1) and outer cylinder (2) to connect
It connects, the blender (3) is placed in inner cylinder (1), and the storage mud groove (6) is placed in below mud discharging mouth (5), the dosing tank
(7) it is placed in above inner cylinder (1), the crystal seed reflux pump (9) is separately connected by pipeline stores mud groove (6) and inner cylinder (1).
2. a kind of nano-sized magnesium hydroxide according to claim 1 recycles concentric drums reactor, which is characterized in that described
It is adhesively fixed between inner cylinder (1) and outer cylinder (2) by tempered glass.
3. a kind of nano-sized magnesium hydroxide according to claim 1 recycles concentric drums reactor, which is characterized in that described
Water inlet (4) is connected on inner cylinder (1) side wall, and the waste water containing magnesium ion is added into inner cylinder (1) by water inlet (4).
4. a kind of nano-sized magnesium hydroxide according to claim 1 recycles concentric drums reactor, which is characterized in that described
Water outlet (8) is arranged on outer cylinder (2) side wall.
5. a kind of nano-sized magnesium hydroxide according to claim 1 recycles concentric drums reactor, which is characterized in that described
In coniform, outlet at bottom is mud discharging mouth (5) for outer cylinder (2) bottom.
6. a kind of nano-sized magnesium hydroxide according to claim 1 recycles concentric drums reactor, which is characterized in that described
Outer cylinder (2) is surrounded by the support frame of support reactor.
7. a kind of nano-sized magnesium hydroxide according to claim 1 recycles concentric drums reactor, which is characterized in that described
It stores mud groove (6) to be located at immediately below reactor, for storing mud discharging mouth (5) arranged nano-sized magnesium hydroxide.
8. a kind of nano-sized magnesium hydroxide according to claim 1 recycles concentric drums reactor, which is characterized in that described
Crystal seed reflux pump (9) is located at reactor side, will store the nano-sized magnesium hydroxide in mud groove (6) as crystal seed blowback to inner cylinder (1),
The ratio that adds of crystal seed is 0.2-2.0g/L in inner cylinder (1) waste water.
9. a kind of nano-sized magnesium hydroxide according to claim 1 recycles concentric drums reactor, which is characterized in that inner cylinder
(1) it when the waste water height inputted reaches the 1/3~1/2 of inner cylinder (1) vertical height, opens the blender (3), mud height to be produced
Higher than outer cylinder (2) 1/4 when start spoil disposal.
10. a kind of nano-sized magnesium hydroxide according to claim 1 recycles concentric drums reactor, which is characterized in that inner cylinder
(1) it is 8.5-12.0 that the pH value of waste water, which adjusts control, in.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811361070.4A CN109317078B (en) | 2018-11-15 | 2018-11-15 | Concentric cylinder reactor for recycling nano magnesium hydroxide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811361070.4A CN109317078B (en) | 2018-11-15 | 2018-11-15 | Concentric cylinder reactor for recycling nano magnesium hydroxide |
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| Publication Number | Publication Date |
|---|---|
| CN109317078A true CN109317078A (en) | 2019-02-12 |
| CN109317078B CN109317078B (en) | 2021-10-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811361070.4A Active CN109317078B (en) | 2018-11-15 | 2018-11-15 | Concentric cylinder reactor for recycling nano magnesium hydroxide |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110342721A (en) * | 2019-08-26 | 2019-10-18 | 北京能为科技股份有限公司 | Desulfurization wastewater enrichment facility and its method |
Citations (4)
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|---|---|---|---|---|
| JP2005231927A (en) * | 2004-02-18 | 2005-09-02 | Ube Material Industries Ltd | Fibrous basic magnesium sulfate massive material |
| CN105906007A (en) * | 2016-05-06 | 2016-08-31 | 重庆文理学院 | Phosphorus recovery reactor |
| CN205907117U (en) * | 2016-05-25 | 2017-01-25 | 海南宝来工贸有限公司 | Spent acid processing apparatus is washed to solar energy silicon |
| CN206276057U (en) * | 2016-11-18 | 2017-06-27 | 益盐堂（应城）健康盐制盐有限公司 | The continuous crystalizer of high purity magnesium hydroxide is produced for chemical ammonia process |
-
2018
- 2018-11-15 CN CN201811361070.4A patent/CN109317078B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005231927A (en) * | 2004-02-18 | 2005-09-02 | Ube Material Industries Ltd | Fibrous basic magnesium sulfate massive material |
| CN105906007A (en) * | 2016-05-06 | 2016-08-31 | 重庆文理学院 | Phosphorus recovery reactor |
| CN205907117U (en) * | 2016-05-25 | 2017-01-25 | 海南宝来工贸有限公司 | Spent acid processing apparatus is washed to solar energy silicon |
| CN206276057U (en) * | 2016-11-18 | 2017-06-27 | 益盐堂（应城）健康盐制盐有限公司 | The continuous crystalizer of high purity magnesium hydroxide is produced for chemical ammonia process |
Non-Patent Citations (1)
| Title |
|---|
| 杜振雷等: "麦芽酚生产过程含镁废液制备氢氧化镁的工艺 ", 《无机盐工业》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110342721A (en) * | 2019-08-26 | 2019-10-18 | 北京能为科技股份有限公司 | Desulfurization wastewater enrichment facility and its method |
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| CN109317078B (en) | 2021-10-01 |
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